774865420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{761}}^1\times {\mathrm{1039}}^1$

素因数の和:1823

約数の個数: 72

約数和(自身を含む): 1897197120

約数和(自身を除く): 1122331700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 761, 980, 1039, 1522, 2078, 3044, 3805, 4156, 5195, 5327, 7273, 7610, 10390, 10654, 14546, 15220, 20780, 21308, 26635, 29092, 36365, 37289, 50911, 53270, 72730, 74578, 101822, 106540, 145460, 149156, 186445, 203644, 254555, 372890, 509110, 745780, 790679, 1018220, 1581358, 3162716, 3953395, 5534753, 7906790, 11069506, 15813580, 22139012, 27673765, 38743271, 55347530, 77486542, 110695060, 154973084, 193716355, 387432710, 774865420]

約数ペア:

[(1, 774865420), (2, 387432710), (4, 193716355), (5, 154973084), (7, 110695060), (10, 77486542), (14, 55347530), (20, 38743271), (28, 27673765), (35, 22139012), (49, 15813580), (70, 11069506), (98, 7906790), (140, 5534753), (196, 3953395), (245, 3162716), (490, 1581358), (761, 1018220), (980, 790679), (1039, 745780), (1522, 509110), (2078, 372890), (3044, 254555), (3805, 203644), (4156, 186445), (5195, 149156), (5327, 145460), (7273, 106540), (7610, 101822), (10390, 74578), (10654, 72730), (14546, 53270), (15220, 50911), (20780, 37289), (21308, 36365), (26635, 29092)]