421004920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{157}}^2$

素因数の和:393

約数の個数: 96

約数和(自身を含む): 1107384480

約数和(自身を除く): 686379560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 61, 70, 122, 140, 157, 244, 280, 305, 314, 427, 488, 610, 628, 785, 854, 1099, 1220, 1256, 1570, 1708, 2135, 2198, 2440, 3140, 3416, 4270, 4396, 5495, 6280, 8540, 8792, 9577, 10990, 17080, 19154, 21980, 24649, 38308, 43960, 47885, 49298, 67039, 76616, 95770, 98596, 123245, 134078, 172543, 191540, 197192, 246490, 268156, 335195, 345086, 383080, 492980, 536312, 670390, 690172, 862715, 985960, 1340780, 1380344, 1503589, 1725430, 2681560, 3007178, 3450860, 6014356, 6901720, 7517945, 10525123, 12028712, 15035890, 21050246, 30071780, 42100492, 52625615, 60143560, 84200984, 105251230, 210502460, 421004920]

約数ペア:

[(1, 421004920), (2, 210502460), (4, 105251230), (5, 84200984), (7, 60143560), (8, 52625615), (10, 42100492), (14, 30071780), (20, 21050246), (28, 15035890), (35, 12028712), (40, 10525123), (56, 7517945), (61, 6901720), (70, 6014356), (122, 3450860), (140, 3007178), (157, 2681560), (244, 1725430), (280, 1503589), (305, 1380344), (314, 1340780), (427, 985960), (488, 862715), (610, 690172), (628, 670390), (785, 536312), (854, 492980), (1099, 383080), (1220, 345086), (1256, 335195), (1570, 268156), (1708, 246490), (2135, 197192), (2198, 191540), (2440, 172543), (3140, 134078), (3416, 123245), (4270, 98596), (4396, 95770), (5495, 76616), (6280, 67039), (8540, 49298), (8792, 47885), (9577, 43960), (10990, 38308), (17080, 24649), (19154, 21980)]