19503340

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{379}}^1$

素因数の和:502

約数の個数: 48

約数和(自身を含む): 42900480

約数和(自身を除く): 23397140

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 83, 124, 155, 166, 310, 332, 379, 415, 620, 758, 830, 1516, 1660, 1895, 2573, 3790, 5146, 7580, 10292, 11749, 12865, 23498, 25730, 31457, 46996, 51460, 58745, 62914, 117490, 125828, 157285, 234980, 314570, 629140, 975167, 1950334, 3900668, 4875835, 9751670, 19503340]

約数ペア:

[(1, 19503340), (2, 9751670), (4, 4875835), (5, 3900668), (10, 1950334), (20, 975167), (31, 629140), (62, 314570), (83, 234980), (124, 157285), (155, 125828), (166, 117490), (310, 62914), (332, 58745), (379, 51460), (415, 46996), (620, 31457), (758, 25730), (830, 23498), (1516, 12865), (1660, 11749), (1895, 10292), (2573, 7580), (3790, 5146)]