251439840

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{283}}^1\times {\mathrm{617}}^1$

素因数の和:921

約数の個数: 144

約数和(自身を含む): 862465968

約数和(自身を除く): 611026128

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 283, 288, 360, 480, 566, 617, 720, 849, 1132, 1234, 1415, 1440, 1698, 1851, 2264, 2468, 2547, 2830, 3085, 3396, 3702, 4245, 4528, 4936, 5094, 5553, 5660, 6170, 6792, 7404, 8490, 9056, 9255, 9872, 10188, 11106, 11320, 12340, 12735, 13584, 14808, 16980, 18510, 19744, 20376, 22212, 22640, 24680, 25470, 27168, 27765, 29616, 33960, 37020, 40752, 44424, 45280, 49360, 50940, 55530, 59232, 67920, 74040, 81504, 88848, 98720, 101880, 111060, 135840, 148080, 174611, 177696, 203760, 222120, 296160, 349222, 407520, 444240, 523833, 698444, 873055, 888480, 1047666, 1396888, 1571499, 1746110, 2095332, 2619165, 2793776, 3142998, 3492220, 4190664, 5238330, 5587552, 6285996, 6984440, 7857495, 8381328, 10476660, 12571992, 13968880, 15714990, 16762656, 20953320, 25143984, 27937760, 31429980, 41906640, 50287968, 62859960, 83813280, 125719920, 251439840]

約数ペア:

[(1, 251439840), (2, 125719920), (3, 83813280), (4, 62859960), (5, 50287968), (6, 41906640), (8, 31429980), (9, 27937760), (10, 25143984), (12, 20953320), (15, 16762656), (16, 15714990), (18, 13968880), (20, 12571992), (24, 10476660), (30, 8381328), (32, 7857495), (36, 6984440), (40, 6285996), (45, 5587552), (48, 5238330), (60, 4190664), (72, 3492220), (80, 3142998), (90, 2793776), (96, 2619165), (120, 2095332), (144, 1746110), (160, 1571499), (180, 1396888), (240, 1047666), (283, 888480), (288, 873055), (360, 698444), (480, 523833), (566, 444240), (617, 407520), (720, 349222), (849, 296160), (1132, 222120), (1234, 203760), (1415, 177696), (1440, 174611), (1698, 148080), (1851, 135840), (2264, 111060), (2468, 101880), (2547, 98720), (2830, 88848), (3085, 81504), (3396, 74040), (3702, 67920), (4245, 59232), (4528, 55530), (4936, 50940), (5094, 49360), (5553, 45280), (5660, 44424), (6170, 40752), (6792, 37020), (7404, 33960), (8490, 29616), (9056, 27765), (9255, 27168), (9872, 25470), (10188, 24680), (11106, 22640), (11320, 22212), (12340, 20376), (12735, 19744), (13584, 18510), (14808, 16980)]