19858880

素因数分解:

$2^6\times 5^1\times {\mathrm{229}}^1\times {\mathrm{271}}^1$

素因数の和:517

約数の個数: 56

約数和(自身を含む): 47670720

約数和(自身を除く): 27811840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 229, 271, 320, 458, 542, 916, 1084, 1145, 1355, 1832, 2168, 2290, 2710, 3664, 4336, 4580, 5420, 7328, 8672, 9160, 10840, 14656, 17344, 18320, 21680, 36640, 43360, 62059, 73280, 86720, 124118, 248236, 310295, 496472, 620590, 992944, 1241180, 1985888, 2482360, 3971776, 4964720, 9929440, 19858880]

約数ペア:

[(1, 19858880), (2, 9929440), (4, 4964720), (5, 3971776), (8, 2482360), (10, 1985888), (16, 1241180), (20, 992944), (32, 620590), (40, 496472), (64, 310295), (80, 248236), (160, 124118), (229, 86720), (271, 73280), (320, 62059), (458, 43360), (542, 36640), (916, 21680), (1084, 18320), (1145, 17344), (1355, 14656), (1832, 10840), (2168, 9160), (2290, 8672), (2710, 7328), (3664, 5420), (4336, 4580)]