647548720

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1$

素因数の和:268

約数の個数: 240

約数和(自身を含む): 1920064608

約数和(自身を除く): 1272515888

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 80, 91, 97, 98, 104, 112, 130, 131, 140, 182, 194, 196, 208, 245, 260, 262, 280, 364, 388, 392, 455, 485, 490, 520, 524, 560, 637, 655, 679, 728, 776, 784, 910, 917, 970, 980, 1040, 1048, 1261, 1274, 1310, 1358, 1456, 1552, 1703, 1820, 1834, 1940, 1960, 2096, 2522, 2548, 2620, 2716, 3185, 3395, 3406, 3640, 3668, 3880, 3920, 4585, 4753, 5044, 5096, 5240, 5432, 6305, 6370, 6419, 6790, 6812, 7280, 7336, 7760, 8515, 8827, 9170, 9506, 10088, 10192, 10480, 10864, 11921, 12610, 12707, 12740, 12838, 13580, 13624, 14672, 17030, 17654, 18340, 19012, 20176, 23765, 23842, 25220, 25414, 25480, 25676, 27160, 27248, 32095, 34060, 35308, 36680, 38024, 44135, 47530, 47684, 50440, 50828, 50960, 51352, 54320, 59605, 61789, 63535, 64190, 68120, 70616, 73360, 76048, 83447, 88270, 88949, 95060, 95368, 100880, 101656, 102704, 119210, 123578, 127070, 128380, 136240, 141232, 165191, 166894, 176540, 177898, 190120, 190736, 203312, 238420, 247156, 254140, 256760, 308945, 330382, 333788, 353080, 355796, 380240, 417235, 444745, 476840, 494312, 508280, 513520, 617890, 622643, 660764, 667576, 706160, 711592, 825955, 834470, 889490, 953680, 988624, 1016560, 1156337, 1235780, 1245286, 1321528, 1335152, 1423184, 1651910, 1668940, 1778980, 2312674, 2471560, 2490572, 2643056, 3113215, 3303820, 3337880, 3557960, 4625348, 4943120, 4981144, 5781685, 6226430, 6607640, 6675760, 7115920, 8094359, 9250696, 9962288, 11563370, 12452860, 13215280, 16188718, 18501392, 23126740, 24905720, 32377436, 40471795, 46253480, 49811440, 64754872, 80943590, 92506960, 129509744, 161887180, 323774360, 647548720]

約数ペア:

[(1, 647548720), (2, 323774360), (4, 161887180), (5, 129509744), (7, 92506960), (8, 80943590), (10, 64754872), (13, 49811440), (14, 46253480), (16, 40471795), (20, 32377436), (26, 24905720), (28, 23126740), (35, 18501392), (40, 16188718), (49, 13215280), (52, 12452860), (56, 11563370), (65, 9962288), (70, 9250696), (80, 8094359), (91, 7115920), (97, 6675760), (98, 6607640), (104, 6226430), (112, 5781685), (130, 4981144), (131, 4943120), (140, 4625348), (182, 3557960), (194, 3337880), (196, 3303820), (208, 3113215), (245, 2643056), (260, 2490572), (262, 2471560), (280, 2312674), (364, 1778980), (388, 1668940), (392, 1651910), (455, 1423184), (485, 1335152), (490, 1321528), (520, 1245286), (524, 1235780), (560, 1156337), (637, 1016560), (655, 988624), (679, 953680), (728, 889490), (776, 834470), (784, 825955), (910, 711592), (917, 706160), (970, 667576), (980, 660764), (1040, 622643), (1048, 617890), (1261, 513520), (1274, 508280), (1310, 494312), (1358, 476840), (1456, 444745), (1552, 417235), (1703, 380240), (1820, 355796), (1834, 353080), (1940, 333788), (1960, 330382), (2096, 308945), (2522, 256760), (2548, 254140), (2620, 247156), (2716, 238420), (3185, 203312), (3395, 190736), (3406, 190120), (3640, 177898), (3668, 176540), (3880, 166894), (3920, 165191), (4585, 141232), (4753, 136240), (5044, 128380), (5096, 127070), (5240, 123578), (5432, 119210), (6305, 102704), (6370, 101656), (6419, 100880), (6790, 95368), (6812, 95060), (7280, 88949), (7336, 88270), (7760, 83447), (8515, 76048), (8827, 73360), (9170, 70616), (9506, 68120), (10088, 64190), (10192, 63535), (10480, 61789), (10864, 59605), (11921, 54320), (12610, 51352), (12707, 50960), (12740, 50828), (12838, 50440), (13580, 47684), (13624, 47530), (14672, 44135), (17030, 38024), (17654, 36680), (18340, 35308), (19012, 34060), (20176, 32095), (23765, 27248), (23842, 27160), (25220, 25676), (25414, 25480)]