281790

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:145

約数の個数: 48

約数和(自身を含む): 763776

約数和(自身を除く): 481986

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 90, 93, 101, 155, 186, 202, 279, 303, 310, 465, 505, 558, 606, 909, 930, 1010, 1395, 1515, 1818, 2790, 3030, 3131, 4545, 6262, 9090, 9393, 15655, 18786, 28179, 31310, 46965, 56358, 93930, 140895, 281790]

約数ペア:

[(1, 281790), (2, 140895), (3, 93930), (5, 56358), (6, 46965), (9, 31310), (10, 28179), (15, 18786), (18, 15655), (30, 9393), (31, 9090), (45, 6262), (62, 4545), (90, 3131), (93, 3030), (101, 2790), (155, 1818), (186, 1515), (202, 1395), (279, 1010), (303, 930), (310, 909), (465, 606), (505, 558)]