206782020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{19471}}^1$

素因数の和:19545

約数の個数: 72

約数和(自身を含む): 637902720

約数和(自身を除く): 431120700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 59, 60, 90, 118, 177, 180, 236, 295, 354, 531, 590, 708, 885, 1062, 1180, 1770, 2124, 2655, 3540, 5310, 10620, 19471, 38942, 58413, 77884, 97355, 116826, 175239, 194710, 233652, 292065, 350478, 389420, 584130, 700956, 876195, 1148789, 1168260, 1752390, 2297578, 3446367, 3504780, 4595156, 5743945, 6892734, 10339101, 11487890, 13785468, 17231835, 20678202, 22975780, 34463670, 41356404, 51695505, 68927340, 103391010, 206782020]

約数ペア:

[(1, 206782020), (2, 103391010), (3, 68927340), (4, 51695505), (5, 41356404), (6, 34463670), (9, 22975780), (10, 20678202), (12, 17231835), (15, 13785468), (18, 11487890), (20, 10339101), (30, 6892734), (36, 5743945), (45, 4595156), (59, 3504780), (60, 3446367), (90, 2297578), (118, 1752390), (177, 1168260), (180, 1148789), (236, 876195), (295, 700956), (354, 584130), (531, 389420), (590, 350478), (708, 292065), (885, 233652), (1062, 194710), (1180, 175239), (1770, 116826), (2124, 97355), (2655, 77884), (3540, 58413), (5310, 38942), (10620, 19471)]