19178890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{1117}}^1$

素因数の和:1242

約数の個数: 32

約数和(自身を含む): 36947664

約数和(自身を除く): 17768774

約数列:

[1, 2, 5, 10, 17, 34, 85, 101, 170, 202, 505, 1010, 1117, 1717, 2234, 3434, 5585, 8585, 11170, 17170, 18989, 37978, 94945, 112817, 189890, 225634, 564085, 1128170, 1917889, 3835778, 9589445, 19178890]

約数ペア:

[(1, 19178890), (2, 9589445), (5, 3835778), (10, 1917889), (17, 1128170), (34, 564085), (85, 225634), (101, 189890), (170, 112817), (202, 94945), (505, 37978), (1010, 18989), (1117, 17170), (1717, 11170), (2234, 8585), (3434, 5585)]