17889820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{829}}^1$

素因数の和:934

約数の個数: 48

約数和(自身を含む): 40995360

約数和(自身を除く): 23105540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 83, 130, 166, 260, 332, 415, 829, 830, 1079, 1658, 1660, 2158, 3316, 4145, 4316, 5395, 8290, 10777, 10790, 16580, 21554, 21580, 43108, 53885, 68807, 107770, 137614, 215540, 275228, 344035, 688070, 894491, 1376140, 1788982, 3577964, 4472455, 8944910, 17889820]

約数ペア:

[(1, 17889820), (2, 8944910), (4, 4472455), (5, 3577964), (10, 1788982), (13, 1376140), (20, 894491), (26, 688070), (52, 344035), (65, 275228), (83, 215540), (130, 137614), (166, 107770), (260, 68807), (332, 53885), (415, 43108), (829, 21580), (830, 21554), (1079, 16580), (1658, 10790), (1660, 10777), (2158, 8290), (3316, 5395), (4145, 4316)]