18846620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{419}}^1$

素因数の和:614

約数の個数: 48

約数和(自身を含む): 42971040

約数和(自身を除く): 24124420

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 173, 260, 346, 419, 692, 838, 865, 1676, 1730, 2095, 2249, 3460, 4190, 4498, 5447, 8380, 8996, 10894, 11245, 21788, 22490, 27235, 44980, 54470, 72487, 108940, 144974, 289948, 362435, 724870, 942331, 1449740, 1884662, 3769324, 4711655, 9423310, 18846620]

約数ペア:

[(1, 18846620), (2, 9423310), (4, 4711655), (5, 3769324), (10, 1884662), (13, 1449740), (20, 942331), (26, 724870), (52, 362435), (65, 289948), (130, 144974), (173, 108940), (260, 72487), (346, 54470), (419, 44980), (692, 27235), (838, 22490), (865, 21788), (1676, 11245), (1730, 10894), (2095, 8996), (2249, 8380), (3460, 5447), (4190, 4498)]