393390

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:94

約数の個数: 64

約数和(自身を含む): 1105920

約数和(自身を除く): 712530

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 31, 45, 47, 54, 62, 90, 93, 94, 135, 141, 155, 186, 235, 270, 279, 282, 310, 423, 465, 470, 558, 705, 837, 846, 930, 1269, 1395, 1410, 1457, 1674, 2115, 2538, 2790, 2914, 4185, 4230, 4371, 6345, 7285, 8370, 8742, 12690, 13113, 14570, 21855, 26226, 39339, 43710, 65565, 78678, 131130, 196695, 393390]

約数ペア:

[(1, 393390), (2, 196695), (3, 131130), (5, 78678), (6, 65565), (9, 43710), (10, 39339), (15, 26226), (18, 21855), (27, 14570), (30, 13113), (31, 12690), (45, 8742), (47, 8370), (54, 7285), (62, 6345), (90, 4371), (93, 4230), (94, 4185), (135, 2914), (141, 2790), (155, 2538), (186, 2115), (235, 1674), (270, 1457), (279, 1410), (282, 1395), (310, 1269), (423, 930), (465, 846), (470, 837), (558, 705)]