655223940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{520019}}^1$

素因数の和:520041

約数の個数: 72

約数和(自身を含む): 2271447360

約数和(自身を除く): 1616223420

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 520019, 1040038, 1560057, 2080076, 2600095, 3120114, 3640133, 4680171, 5200190, 6240228, 7280266, 7800285, 9360342, 10400380, 10920399, 14560532, 15600570, 18200665, 18720684, 21840798, 23400855, 31201140, 32761197, 36401330, 43681596, 46801710, 54601995, 65522394, 72802660, 93603420, 109203990, 131044788, 163805985, 218407980, 327611970, 655223940]

約数ペア:

[(1, 655223940), (2, 327611970), (3, 218407980), (4, 163805985), (5, 131044788), (6, 109203990), (7, 93603420), (9, 72802660), (10, 65522394), (12, 54601995), (14, 46801710), (15, 43681596), (18, 36401330), (20, 32761197), (21, 31201140), (28, 23400855), (30, 21840798), (35, 18720684), (36, 18200665), (42, 15600570), (45, 14560532), (60, 10920399), (63, 10400380), (70, 9360342), (84, 7800285), (90, 7280266), (105, 6240228), (126, 5200190), (140, 4680171), (180, 3640133), (210, 3120114), (252, 2600095), (315, 2080076), (420, 1560057), (630, 1040038), (1260, 520019)]