68439280

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1$

素因数の和:136

約数の個数: 240

約数和(自身を含む): 213736320

約数和(自身を除く): 145297040

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 17, 20, 26, 28, 34, 35, 40, 49, 52, 56, 65, 68, 70, 79, 80, 85, 91, 98, 104, 112, 119, 130, 136, 140, 158, 170, 182, 196, 208, 221, 238, 245, 260, 272, 280, 316, 340, 364, 392, 395, 442, 455, 476, 490, 520, 553, 560, 595, 632, 637, 680, 728, 784, 790, 833, 884, 910, 952, 980, 1027, 1040, 1105, 1106, 1190, 1264, 1274, 1343, 1360, 1456, 1547, 1580, 1666, 1768, 1820, 1904, 1960, 2054, 2210, 2212, 2380, 2548, 2686, 2765, 3094, 3160, 3185, 3332, 3536, 3640, 3871, 3920, 4108, 4165, 4420, 4424, 4760, 5096, 5135, 5372, 5530, 6188, 6320, 6370, 6664, 6715, 7189, 7280, 7735, 7742, 8216, 8330, 8840, 8848, 9401, 9520, 10192, 10270, 10744, 10829, 11060, 12376, 12740, 13328, 13430, 14378, 15470, 15484, 16432, 16660, 17459, 17680, 18802, 19355, 20540, 21488, 21658, 22120, 24752, 25480, 26860, 28756, 30940, 30968, 33320, 34918, 35945, 37604, 38710, 41080, 43316, 44240, 47005, 50323, 50960, 53720, 54145, 57512, 61880, 61936, 65807, 66640, 69836, 71890, 75208, 77420, 82160, 86632, 87295, 94010, 100646, 107440, 108290, 115024, 122213, 123760, 131614, 139672, 143780, 150416, 154840, 173264, 174590, 188020, 201292, 216580, 244426, 251615, 263228, 279344, 287560, 309680, 329035, 349180, 376040, 402584, 433160, 488852, 503230, 526456, 575120, 611065, 658070, 698360, 752080, 805168, 855491, 866320, 977704, 1006460, 1052912, 1222130, 1316140, 1396720, 1710982, 1955408, 2012920, 2444260, 2632280, 3421964, 4025840, 4277455, 4888520, 5264560, 6843928, 8554910, 9777040, 13687856, 17109820, 34219640, 68439280]

約数ペア:

[(1, 68439280), (2, 34219640), (4, 17109820), (5, 13687856), (7, 9777040), (8, 8554910), (10, 6843928), (13, 5264560), (14, 4888520), (16, 4277455), (17, 4025840), (20, 3421964), (26, 2632280), (28, 2444260), (34, 2012920), (35, 1955408), (40, 1710982), (49, 1396720), (52, 1316140), (56, 1222130), (65, 1052912), (68, 1006460), (70, 977704), (79, 866320), (80, 855491), (85, 805168), (91, 752080), (98, 698360), (104, 658070), (112, 611065), (119, 575120), (130, 526456), (136, 503230), (140, 488852), (158, 433160), (170, 402584), (182, 376040), (196, 349180), (208, 329035), (221, 309680), (238, 287560), (245, 279344), (260, 263228), (272, 251615), (280, 244426), (316, 216580), (340, 201292), (364, 188020), (392, 174590), (395, 173264), (442, 154840), (455, 150416), (476, 143780), (490, 139672), (520, 131614), (553, 123760), (560, 122213), (595, 115024), (632, 108290), (637, 107440), (680, 100646), (728, 94010), (784, 87295), (790, 86632), (833, 82160), (884, 77420), (910, 75208), (952, 71890), (980, 69836), (1027, 66640), (1040, 65807), (1105, 61936), (1106, 61880), (1190, 57512), (1264, 54145), (1274, 53720), (1343, 50960), (1360, 50323), (1456, 47005), (1547, 44240), (1580, 43316), (1666, 41080), (1768, 38710), (1820, 37604), (1904, 35945), (1960, 34918), (2054, 33320), (2210, 30968), (2212, 30940), (2380, 28756), (2548, 26860), (2686, 25480), (2765, 24752), (3094, 22120), (3160, 21658), (3185, 21488), (3332, 20540), (3536, 19355), (3640, 18802), (3871, 17680), (3920, 17459), (4108, 16660), (4165, 16432), (4420, 15484), (4424, 15470), (4760, 14378), (5096, 13430), (5135, 13328), (5372, 12740), (5530, 12376), (6188, 11060), (6320, 10829), (6370, 10744), (6664, 10270), (6715, 10192), (7189, 9520), (7280, 9401), (7735, 8848), (7742, 8840), (8216, 8330)]