19896890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{3733}}^1$

素因数の和:3794

約数の個数: 32

約数和(自身を含む): 39520656

約数和(自身を除く): 19623766

約数列:

[1, 2, 5, 10, 13, 26, 41, 65, 82, 130, 205, 410, 533, 1066, 2665, 3733, 5330, 7466, 18665, 37330, 48529, 97058, 153053, 242645, 306106, 485290, 765265, 1530530, 1989689, 3979378, 9948445, 19896890]

約数ペア:

[(1, 19896890), (2, 9948445), (5, 3979378), (10, 1989689), (13, 1530530), (26, 765265), (41, 485290), (65, 306106), (82, 242645), (130, 153053), (205, 97058), (410, 48529), (533, 37330), (1066, 18665), (2665, 7466), (3733, 5330)]