20170251920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2770639}}^1$

素因数の和:2770672

約数の個数: 80

約数和(自身を含む): 57717972480

約数和(自身を除く): 37547720560

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280, 2770639, 5541278, 11082556, 13853195, 19394473, 22165112, 27706390, 36018307, 38788946, 44330224, 55412780, 72036614, 77577892, 96972365, 110825560, 144073228, 155155784, 180091535, 193944730, 221651120, 252128149, 288146456, 310311568, 360183070, 387889460, 504256298, 576292912, 720366140, 775778920, 1008512596, 1260640745, 1440732280, 1551557840, 2017025192, 2521281490, 2881464560, 4034050384, 5042562980, 10085125960, 20170251920]

約数ペア:

[(1, 20170251920), (2, 10085125960), (4, 5042562980), (5, 4034050384), (7, 2881464560), (8, 2521281490), (10, 2017025192), (13, 1551557840), (14, 1440732280), (16, 1260640745), (20, 1008512596), (26, 775778920), (28, 720366140), (35, 576292912), (40, 504256298), (52, 387889460), (56, 360183070), (65, 310311568), (70, 288146456), (80, 252128149), (91, 221651120), (104, 193944730), (112, 180091535), (130, 155155784), (140, 144073228), (182, 110825560), (208, 96972365), (260, 77577892), (280, 72036614), (364, 55412780), (455, 44330224), (520, 38788946), (560, 36018307), (728, 27706390), (910, 22165112), (1040, 19394473), (1456, 13853195), (1820, 11082556), (3640, 5541278), (7280, 2770639)]