20129200

素因数分解:

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

素因数の和:124

約数の個数: 180

約数和(自身を含む): 61350240

約数和(自身を除く): 41221040

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 25, 26, 28, 35, 40, 49, 50, 52, 56, 65, 70, 79, 80, 91, 98, 100, 104, 112, 130, 140, 158, 175, 182, 196, 200, 208, 245, 260, 280, 316, 325, 350, 364, 392, 395, 400, 455, 490, 520, 553, 560, 632, 637, 650, 700, 728, 784, 790, 910, 980, 1027, 1040, 1106, 1225, 1264, 1274, 1300, 1400, 1456, 1580, 1820, 1960, 1975, 2054, 2212, 2275, 2450, 2548, 2600, 2765, 2800, 3160, 3185, 3640, 3871, 3920, 3950, 4108, 4424, 4550, 4900, 5096, 5135, 5200, 5530, 6320, 6370, 7189, 7280, 7742, 7900, 8216, 8848, 9100, 9800, 10192, 10270, 11060, 12740, 13825, 14378, 15484, 15800, 15925, 16432, 18200, 19355, 19600, 20540, 22120, 25480, 25675, 27650, 28756, 30968, 31600, 31850, 35945, 36400, 38710, 41080, 44240, 50323, 50960, 51350, 55300, 57512, 61936, 63700, 71890, 77420, 82160, 96775, 100646, 102700, 110600, 115024, 127400, 143780, 154840, 179725, 193550, 201292, 205400, 221200, 251615, 254800, 287560, 309680, 359450, 387100, 402584, 410800, 503230, 575120, 718900, 774200, 805168, 1006460, 1258075, 1437800, 1548400, 2012920, 2516150, 2875600, 4025840, 5032300, 10064600, 20129200]

約数ペア:

[(1, 20129200), (2, 10064600), (4, 5032300), (5, 4025840), (7, 2875600), (8, 2516150), (10, 2012920), (13, 1548400), (14, 1437800), (16, 1258075), (20, 1006460), (25, 805168), (26, 774200), (28, 718900), (35, 575120), (40, 503230), (49, 410800), (50, 402584), (52, 387100), (56, 359450), (65, 309680), (70, 287560), (79, 254800), (80, 251615), (91, 221200), (98, 205400), (100, 201292), (104, 193550), (112, 179725), (130, 154840), (140, 143780), (158, 127400), (175, 115024), (182, 110600), (196, 102700), (200, 100646), (208, 96775), (245, 82160), (260, 77420), (280, 71890), (316, 63700), (325, 61936), (350, 57512), (364, 55300), (392, 51350), (395, 50960), (400, 50323), (455, 44240), (490, 41080), (520, 38710), (553, 36400), (560, 35945), (632, 31850), (637, 31600), (650, 30968), (700, 28756), (728, 27650), (784, 25675), (790, 25480), (910, 22120), (980, 20540), (1027, 19600), (1040, 19355), (1106, 18200), (1225, 16432), (1264, 15925), (1274, 15800), (1300, 15484), (1400, 14378), (1456, 13825), (1580, 12740), (1820, 11060), (1960, 10270), (1975, 10192), (2054, 9800), (2212, 9100), (2275, 8848), (2450, 8216), (2548, 7900), (2600, 7742), (2765, 7280), (2800, 7189), (3160, 6370), (3185, 6320), (3640, 5530), (3871, 5200), (3920, 5135), (3950, 5096), (4108, 4900), (4424, 4550)]