199397120

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{521}}^1$

素因数の和:578

約数の個数: 144

約数和(自身を含む): 537751872

約数和(自身を除く): 338354752

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 52, 64, 65, 80, 92, 104, 115, 128, 130, 160, 184, 208, 230, 256, 260, 299, 320, 368, 416, 460, 520, 521, 598, 640, 736, 832, 920, 1040, 1042, 1196, 1280, 1472, 1495, 1664, 1840, 2080, 2084, 2392, 2605, 2944, 2990, 3328, 3680, 4160, 4168, 4784, 5210, 5888, 5980, 6773, 7360, 8320, 8336, 9568, 10420, 11960, 11983, 13546, 14720, 16640, 16672, 19136, 20840, 23920, 23966, 27092, 29440, 33344, 33865, 38272, 41680, 47840, 47932, 54184, 59915, 66688, 67730, 76544, 83360, 95680, 95864, 108368, 119830, 133376, 135460, 155779, 166720, 191360, 191728, 216736, 239660, 270920, 311558, 333440, 382720, 383456, 433472, 479320, 541840, 623116, 666880, 766912, 778895, 866944, 958640, 1083680, 1246232, 1533824, 1557790, 1733888, 1917280, 2167360, 2492464, 3067648, 3115580, 3834560, 4334720, 4984928, 6231160, 7669120, 8669440, 9969856, 12462320, 15338240, 19939712, 24924640, 39879424, 49849280, 99698560, 199397120]

約数ペア:

[(1, 199397120), (2, 99698560), (4, 49849280), (5, 39879424), (8, 24924640), (10, 19939712), (13, 15338240), (16, 12462320), (20, 9969856), (23, 8669440), (26, 7669120), (32, 6231160), (40, 4984928), (46, 4334720), (52, 3834560), (64, 3115580), (65, 3067648), (80, 2492464), (92, 2167360), (104, 1917280), (115, 1733888), (128, 1557790), (130, 1533824), (160, 1246232), (184, 1083680), (208, 958640), (230, 866944), (256, 778895), (260, 766912), (299, 666880), (320, 623116), (368, 541840), (416, 479320), (460, 433472), (520, 383456), (521, 382720), (598, 333440), (640, 311558), (736, 270920), (832, 239660), (920, 216736), (1040, 191728), (1042, 191360), (1196, 166720), (1280, 155779), (1472, 135460), (1495, 133376), (1664, 119830), (1840, 108368), (2080, 95864), (2084, 95680), (2392, 83360), (2605, 76544), (2944, 67730), (2990, 66688), (3328, 59915), (3680, 54184), (4160, 47932), (4168, 47840), (4784, 41680), (5210, 38272), (5888, 33865), (5980, 33344), (6773, 29440), (7360, 27092), (8320, 23966), (8336, 23920), (9568, 20840), (10420, 19136), (11960, 16672), (11983, 16640), (13546, 14720)]