18719632

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{307}}^1$

素因数の和:455

約数の個数: 40

約数和(自身を含む): 37733696

約数和(自身を除く): 19014064

約数列:

[1, 2, 4, 8, 16, 37, 74, 103, 148, 206, 296, 307, 412, 592, 614, 824, 1228, 1648, 2456, 3811, 4912, 7622, 11359, 15244, 22718, 30488, 31621, 45436, 60976, 63242, 90872, 126484, 181744, 252968, 505936, 1169977, 2339954, 4679908, 9359816, 18719632]

約数ペア:

[(1, 18719632), (2, 9359816), (4, 4679908), (8, 2339954), (16, 1169977), (37, 505936), (74, 252968), (103, 181744), (148, 126484), (206, 90872), (296, 63242), (307, 60976), (412, 45436), (592, 31621), (614, 30488), (824, 22718), (1228, 15244), (1648, 11359), (2456, 7622), (3811, 4912)]