21858154240

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{691}}^1\times {\mathrm{1901}}^1$

素因数の和:2626

約数の個数: 144

約数和(自身を含む): 56495882016

約数和(自身を除く): 34637727776

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 691, 832, 1040, 1280, 1382, 1664, 1901, 2080, 2764, 3328, 3455, 3802, 4160, 5528, 6910, 7604, 8320, 8983, 9505, 11056, 13820, 15208, 16640, 17966, 19010, 22112, 24713, 27640, 30416, 35932, 38020, 44224, 44915, 49426, 55280, 60832, 71864, 76040, 88448, 89830, 98852, 110560, 121664, 123565, 143728, 152080, 176896, 179660, 197704, 221120, 243328, 247130, 287456, 304160, 359320, 395408, 442240, 486656, 494260, 574912, 608320, 718640, 790816, 884480, 988520, 1149824, 1216640, 1313591, 1437280, 1581632, 1977040, 2299648, 2433280, 2627182, 2874560, 3163264, 3954080, 5254364, 5749120, 6326528, 6567955, 7908160, 10508728, 11498240, 13135910, 15816320, 17076683, 21017456, 26271820, 31632640, 34153366, 42034912, 52543640, 68306732, 84069824, 85383415, 105087280, 136613464, 168139648, 170766830, 210174560, 273226928, 336279296, 341533660, 420349120, 546453856, 683067320, 840698240, 1092907712, 1366134640, 1681396480, 2185815424, 2732269280, 4371630848, 5464538560, 10929077120, 21858154240]

約数ペア:

[(1, 21858154240), (2, 10929077120), (4, 5464538560), (5, 4371630848), (8, 2732269280), (10, 2185815424), (13, 1681396480), (16, 1366134640), (20, 1092907712), (26, 840698240), (32, 683067320), (40, 546453856), (52, 420349120), (64, 341533660), (65, 336279296), (80, 273226928), (104, 210174560), (128, 170766830), (130, 168139648), (160, 136613464), (208, 105087280), (256, 85383415), (260, 84069824), (320, 68306732), (416, 52543640), (520, 42034912), (640, 34153366), (691, 31632640), (832, 26271820), (1040, 21017456), (1280, 17076683), (1382, 15816320), (1664, 13135910), (1901, 11498240), (2080, 10508728), (2764, 7908160), (3328, 6567955), (3455, 6326528), (3802, 5749120), (4160, 5254364), (5528, 3954080), (6910, 3163264), (7604, 2874560), (8320, 2627182), (8983, 2433280), (9505, 2299648), (11056, 1977040), (13820, 1581632), (15208, 1437280), (16640, 1313591), (17966, 1216640), (19010, 1149824), (22112, 988520), (24713, 884480), (27640, 790816), (30416, 718640), (35932, 608320), (38020, 574912), (44224, 494260), (44915, 486656), (49426, 442240), (55280, 395408), (60832, 359320), (71864, 304160), (76040, 287456), (88448, 247130), (89830, 243328), (98852, 221120), (110560, 197704), (121664, 179660), (123565, 176896), (143728, 152080)]