1917369220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{631}}^1$

素因数の和:726

約数の個数: 144

約数和(自身を含む): 4663249920

約数和(自身を除く): 2745880700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 31, 52, 58, 62, 65, 116, 124, 130, 145, 155, 169, 260, 290, 310, 338, 377, 403, 580, 620, 631, 676, 754, 806, 845, 899, 1262, 1508, 1612, 1690, 1798, 1885, 2015, 2524, 3155, 3380, 3596, 3770, 4030, 4495, 4901, 5239, 6310, 7540, 8060, 8203, 8990, 9802, 10478, 11687, 12620, 16406, 17980, 18299, 19561, 19604, 20956, 23374, 24505, 26195, 32812, 36598, 39122, 41015, 46748, 49010, 52390, 58435, 73196, 78244, 82030, 91495, 97805, 98020, 104780, 106639, 116870, 151931, 164060, 182990, 195610, 213278, 233740, 237887, 254293, 303862, 365980, 391220, 426556, 475774, 508586, 533195, 567269, 607724, 759655, 951548, 1017172, 1066390, 1134538, 1189435, 1271465, 1519310, 2132780, 2269076, 2378870, 2542930, 2836345, 3038620, 3092531, 3305809, 4757740, 5085860, 5672690, 6185062, 6611618, 7374497, 11345380, 12370124, 13223236, 14748994, 15462655, 16529045, 29497988, 30925310, 33058090, 36872485, 61850620, 66116180, 73744970, 95868461, 147489940, 191736922, 383473844, 479342305, 958684610, 1917369220]

約数ペア:

[(1, 1917369220), (2, 958684610), (4, 479342305), (5, 383473844), (10, 191736922), (13, 147489940), (20, 95868461), (26, 73744970), (29, 66116180), (31, 61850620), (52, 36872485), (58, 33058090), (62, 30925310), (65, 29497988), (116, 16529045), (124, 15462655), (130, 14748994), (145, 13223236), (155, 12370124), (169, 11345380), (260, 7374497), (290, 6611618), (310, 6185062), (338, 5672690), (377, 5085860), (403, 4757740), (580, 3305809), (620, 3092531), (631, 3038620), (676, 2836345), (754, 2542930), (806, 2378870), (845, 2269076), (899, 2132780), (1262, 1519310), (1508, 1271465), (1612, 1189435), (1690, 1134538), (1798, 1066390), (1885, 1017172), (2015, 951548), (2524, 759655), (3155, 607724), (3380, 567269), (3596, 533195), (3770, 508586), (4030, 475774), (4495, 426556), (4901, 391220), (5239, 365980), (6310, 303862), (7540, 254293), (8060, 237887), (8203, 233740), (8990, 213278), (9802, 195610), (10478, 182990), (11687, 164060), (12620, 151931), (16406, 116870), (17980, 106639), (18299, 104780), (19561, 98020), (19604, 97805), (20956, 91495), (23374, 82030), (24505, 78244), (26195, 73196), (32812, 58435), (36598, 52390), (39122, 49010), (41015, 46748)]