720124860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{131891}}^1$

素因数の和:131923

約数の個数: 96

約数和(自身を含む): 2481679872

約数和(自身を除く): 1761555012

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 5460, 131891, 263782, 395673, 527564, 659455, 791346, 923237, 1318910, 1582692, 1714583, 1846474, 1978365, 2637820, 2769711, 3429166, 3692948, 3956730, 4616185, 5143749, 5539422, 6858332, 7913460, 8572915, 9232370, 10287498, 11078844, 12002081, 13848555, 17145830, 18464740, 20574996, 24004162, 25718745, 27697110, 34291660, 36006243, 48008324, 51437490, 55394220, 60010405, 72012486, 102874980, 120020810, 144024972, 180031215, 240041620, 360062430, 720124860]

約数ペア:

[(1, 720124860), (2, 360062430), (3, 240041620), (4, 180031215), (5, 144024972), (6, 120020810), (7, 102874980), (10, 72012486), (12, 60010405), (13, 55394220), (14, 51437490), (15, 48008324), (20, 36006243), (21, 34291660), (26, 27697110), (28, 25718745), (30, 24004162), (35, 20574996), (39, 18464740), (42, 17145830), (52, 13848555), (60, 12002081), (65, 11078844), (70, 10287498), (78, 9232370), (84, 8572915), (91, 7913460), (105, 6858332), (130, 5539422), (140, 5143749), (156, 4616185), (182, 3956730), (195, 3692948), (210, 3429166), (260, 2769711), (273, 2637820), (364, 1978365), (390, 1846474), (420, 1714583), (455, 1582692), (546, 1318910), (780, 923237), (910, 791346), (1092, 659455), (1365, 527564), (1820, 395673), (2730, 263782), (5460, 131891)]