81928920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{461}}^1\times {\mathrm{1481}}^1$

素因数の和:1956

約数の個数: 64

約数和(自身を含む): 246486240

約数和(自身を除く): 164557320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 461, 922, 1383, 1481, 1844, 2305, 2766, 2962, 3688, 4443, 4610, 5532, 5924, 6915, 7405, 8886, 9220, 11064, 11848, 13830, 14810, 17772, 18440, 22215, 27660, 29620, 35544, 44430, 55320, 59240, 88860, 177720, 682741, 1365482, 2048223, 2730964, 3413705, 4096446, 5461928, 6827410, 8192892, 10241115, 13654820, 16385784, 20482230, 27309640, 40964460, 81928920]

約数ペア:

[(1, 81928920), (2, 40964460), (3, 27309640), (4, 20482230), (5, 16385784), (6, 13654820), (8, 10241115), (10, 8192892), (12, 6827410), (15, 5461928), (20, 4096446), (24, 3413705), (30, 2730964), (40, 2048223), (60, 1365482), (120, 682741), (461, 177720), (922, 88860), (1383, 59240), (1481, 55320), (1844, 44430), (2305, 35544), (2766, 29620), (2962, 27660), (3688, 22215), (4443, 18440), (4610, 17772), (5532, 14810), (5924, 13830), (6915, 11848), (7405, 11064), (8886, 9220)]