16658980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3769}}^1$

素因数の和:3808

約数の個数: 48

約数和(自身を含む): 39901680

約数和(自身を除く): 23242700

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 3769, 4420, 7538, 15076, 18845, 37690, 48997, 64073, 75380, 97994, 128146, 195988, 244985, 256292, 320365, 489970, 640730, 832949, 979940, 1281460, 1665898, 3331796, 4164745, 8329490, 16658980]

約数ペア:

[(1, 16658980), (2, 8329490), (4, 4164745), (5, 3331796), (10, 1665898), (13, 1281460), (17, 979940), (20, 832949), (26, 640730), (34, 489970), (52, 320365), (65, 256292), (68, 244985), (85, 195988), (130, 128146), (170, 97994), (221, 75380), (260, 64073), (340, 48997), (442, 37690), (884, 18845), (1105, 15076), (2210, 7538), (3769, 4420)]