257890620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{877}}^1$

素因数の和:944

約数の個数: 144

約数和(自身を含む): 809796960

約数和(自身を除く): 551906340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 29, 30, 39, 52, 58, 60, 65, 78, 87, 116, 130, 145, 156, 169, 174, 195, 260, 290, 338, 348, 377, 390, 435, 507, 580, 676, 754, 780, 845, 870, 877, 1014, 1131, 1508, 1690, 1740, 1754, 1885, 2028, 2262, 2535, 2631, 3380, 3508, 3770, 4385, 4524, 4901, 5070, 5262, 5655, 7540, 8770, 9802, 10140, 10524, 11310, 11401, 13155, 14703, 17540, 19604, 22620, 22802, 24505, 25433, 26310, 29406, 34203, 45604, 49010, 50866, 52620, 57005, 58812, 68406, 73515, 76299, 98020, 101732, 114010, 127165, 136812, 147030, 148213, 152598, 171015, 228020, 254330, 294060, 296426, 305196, 330629, 342030, 381495, 444639, 508660, 592852, 661258, 684060, 741065, 762990, 889278, 991887, 1322516, 1482130, 1525980, 1653145, 1778556, 1983774, 2223195, 2964260, 3306290, 3967548, 4298177, 4446390, 4959435, 6612580, 8596354, 8892780, 9918870, 12894531, 17192708, 19837740, 21490885, 25789062, 42981770, 51578124, 64472655, 85963540, 128945310, 257890620]

約数ペア:

[(1, 257890620), (2, 128945310), (3, 85963540), (4, 64472655), (5, 51578124), (6, 42981770), (10, 25789062), (12, 21490885), (13, 19837740), (15, 17192708), (20, 12894531), (26, 9918870), (29, 8892780), (30, 8596354), (39, 6612580), (52, 4959435), (58, 4446390), (60, 4298177), (65, 3967548), (78, 3306290), (87, 2964260), (116, 2223195), (130, 1983774), (145, 1778556), (156, 1653145), (169, 1525980), (174, 1482130), (195, 1322516), (260, 991887), (290, 889278), (338, 762990), (348, 741065), (377, 684060), (390, 661258), (435, 592852), (507, 508660), (580, 444639), (676, 381495), (754, 342030), (780, 330629), (845, 305196), (870, 296426), (877, 294060), (1014, 254330), (1131, 228020), (1508, 171015), (1690, 152598), (1740, 148213), (1754, 147030), (1885, 136812), (2028, 127165), (2262, 114010), (2535, 101732), (2631, 98020), (3380, 76299), (3508, 73515), (3770, 68406), (4385, 58812), (4524, 57005), (4901, 52620), (5070, 50866), (5262, 49010), (5655, 45604), (7540, 34203), (8770, 29406), (9802, 26310), (10140, 25433), (10524, 24505), (11310, 22802), (11401, 22620), (13155, 19604), (14703, 17540)]