640788960

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{190711}}^1$

素因数の和:190736

約数の個数: 96

約数和(自身を含む): 2306852352

約数和(自身を除く): 1666063392

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 210, 224, 240, 280, 336, 420, 480, 560, 672, 840, 1120, 1680, 3360, 190711, 381422, 572133, 762844, 953555, 1144266, 1334977, 1525688, 1907110, 2288532, 2669954, 2860665, 3051376, 3814220, 4004931, 4577064, 5339908, 5721330, 6102752, 6674885, 7628440, 8009862, 9154128, 10679816, 11442660, 13349770, 15256880, 16019724, 18308256, 20024655, 21359632, 22885320, 26699540, 30513760, 32039448, 40049310, 42719264, 45770640, 53399080, 64078896, 80098620, 91541280, 106798160, 128157792, 160197240, 213596320, 320394480, 640788960]

約数ペア:

[(1, 640788960), (2, 320394480), (3, 213596320), (4, 160197240), (5, 128157792), (6, 106798160), (7, 91541280), (8, 80098620), (10, 64078896), (12, 53399080), (14, 45770640), (15, 42719264), (16, 40049310), (20, 32039448), (21, 30513760), (24, 26699540), (28, 22885320), (30, 21359632), (32, 20024655), (35, 18308256), (40, 16019724), (42, 15256880), (48, 13349770), (56, 11442660), (60, 10679816), (70, 9154128), (80, 8009862), (84, 7628440), (96, 6674885), (105, 6102752), (112, 5721330), (120, 5339908), (140, 4577064), (160, 4004931), (168, 3814220), (210, 3051376), (224, 2860665), (240, 2669954), (280, 2288532), (336, 1907110), (420, 1525688), (480, 1334977), (560, 1144266), (672, 953555), (840, 762844), (1120, 572133), (1680, 381422), (3360, 190711)]