289388320

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{373}}^2$

素因数の和:774

約数の個数: 72

約数和(自身を含む): 738249876

約数和(自身を除く): 448861556

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 373, 416, 520, 746, 1040, 1492, 1865, 2080, 2984, 3730, 4849, 5968, 7460, 9698, 11936, 14920, 19396, 24245, 29840, 38792, 48490, 59680, 77584, 96980, 139129, 155168, 193960, 278258, 387920, 556516, 695645, 775840, 1113032, 1391290, 1808677, 2226064, 2782580, 3617354, 4452128, 5565160, 7234708, 9043385, 11130320, 14469416, 18086770, 22260640, 28938832, 36173540, 57877664, 72347080, 144694160, 289388320]

約数ペア:

[(1, 289388320), (2, 144694160), (4, 72347080), (5, 57877664), (8, 36173540), (10, 28938832), (13, 22260640), (16, 18086770), (20, 14469416), (26, 11130320), (32, 9043385), (40, 7234708), (52, 5565160), (65, 4452128), (80, 3617354), (104, 2782580), (130, 2226064), (160, 1808677), (208, 1391290), (260, 1113032), (373, 775840), (416, 695645), (520, 556516), (746, 387920), (1040, 278258), (1492, 193960), (1865, 155168), (2080, 139129), (2984, 96980), (3730, 77584), (4849, 59680), (5968, 48490), (7460, 38792), (9698, 29840), (11936, 24245), (14920, 19396)]