19739890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{1399}}^1$

素因数の和:1506

約数の個数: 32

約数和(自身を含む): 38102400

約数和(自身を除く): 18362510

約数列:

[1, 2, 5, 10, 17, 34, 83, 85, 166, 170, 415, 830, 1399, 1411, 2798, 2822, 6995, 7055, 13990, 14110, 23783, 47566, 116117, 118915, 232234, 237830, 580585, 1161170, 1973989, 3947978, 9869945, 19739890]

約数ペア:

[(1, 19739890), (2, 9869945), (5, 3947978), (10, 1973989), (17, 1161170), (34, 580585), (83, 237830), (85, 232234), (166, 118915), (170, 116117), (415, 47566), (830, 23783), (1399, 14110), (1411, 13990), (2798, 7055), (2822, 6995)]