81191790

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{29101}}^1$

素因数の和:29145

約数の個数: 48

約数和(自身を含む): 217915776

約数和(自身を除く): 136723986

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 90, 93, 155, 186, 279, 310, 465, 558, 930, 1395, 2790, 29101, 58202, 87303, 145505, 174606, 261909, 291010, 436515, 523818, 873030, 902131, 1309545, 1804262, 2619090, 2706393, 4510655, 5412786, 8119179, 9021310, 13531965, 16238358, 27063930, 40595895, 81191790]

約数ペア:

[(1, 81191790), (2, 40595895), (3, 27063930), (5, 16238358), (6, 13531965), (9, 9021310), (10, 8119179), (15, 5412786), (18, 4510655), (30, 2706393), (31, 2619090), (45, 1804262), (62, 1309545), (90, 902131), (93, 873030), (155, 523818), (186, 436515), (279, 291010), (310, 261909), (465, 174606), (558, 145505), (930, 87303), (1395, 58202), (2790, 29101)]