1898765440

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{20747}}^1$

素因数の和:20790

約数の個数: 128

約数和(自身を含む): 5333065920

約数和(自身を除く): 3434300480

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 64, 65, 80, 88, 104, 110, 128, 130, 143, 160, 176, 208, 220, 260, 286, 320, 352, 416, 440, 520, 572, 640, 704, 715, 832, 880, 1040, 1144, 1408, 1430, 1664, 1760, 2080, 2288, 2860, 3520, 4160, 4576, 5720, 7040, 8320, 9152, 11440, 18304, 20747, 22880, 41494, 45760, 82988, 91520, 103735, 165976, 207470, 228217, 269711, 331952, 414940, 456434, 539422, 663904, 829880, 912868, 1078844, 1141085, 1327808, 1348555, 1659760, 1825736, 2157688, 2282170, 2655616, 2697110, 2966821, 3319520, 3651472, 4315376, 4564340, 5394220, 5933642, 6639040, 7302944, 8630752, 9128680, 10788440, 11867284, 13278080, 14605888, 14834105, 17261504, 18257360, 21576880, 23734568, 29211776, 29668210, 34523008, 36514720, 43153760, 47469136, 59336420, 73029440, 86307520, 94938272, 118672840, 146058880, 172615040, 189876544, 237345680, 379753088, 474691360, 949382720, 1898765440]

約数ペア:

[(1, 1898765440), (2, 949382720), (4, 474691360), (5, 379753088), (8, 237345680), (10, 189876544), (11, 172615040), (13, 146058880), (16, 118672840), (20, 94938272), (22, 86307520), (26, 73029440), (32, 59336420), (40, 47469136), (44, 43153760), (52, 36514720), (55, 34523008), (64, 29668210), (65, 29211776), (80, 23734568), (88, 21576880), (104, 18257360), (110, 17261504), (128, 14834105), (130, 14605888), (143, 13278080), (160, 11867284), (176, 10788440), (208, 9128680), (220, 8630752), (260, 7302944), (286, 6639040), (320, 5933642), (352, 5394220), (416, 4564340), (440, 4315376), (520, 3651472), (572, 3319520), (640, 2966821), (704, 2697110), (715, 2655616), (832, 2282170), (880, 2157688), (1040, 1825736), (1144, 1659760), (1408, 1348555), (1430, 1327808), (1664, 1141085), (1760, 1078844), (2080, 912868), (2288, 829880), (2860, 663904), (3520, 539422), (4160, 456434), (4576, 414940), (5720, 331952), (7040, 269711), (8320, 228217), (9152, 207470), (11440, 165976), (18304, 103735), (20747, 91520), (22880, 82988), (41494, 45760)]