831420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:195

約数の個数: 72

約数和(自身を含む): 2620800

約数和(自身を除く): 1789380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 149, 155, 180, 186, 279, 298, 310, 372, 447, 465, 558, 596, 620, 745, 894, 930, 1116, 1341, 1395, 1490, 1788, 1860, 2235, 2682, 2790, 2980, 4470, 4619, 5364, 5580, 6705, 8940, 9238, 13410, 13857, 18476, 23095, 26820, 27714, 41571, 46190, 55428, 69285, 83142, 92380, 138570, 166284, 207855, 277140, 415710, 831420]

約数ペア:

[(1, 831420), (2, 415710), (3, 277140), (4, 207855), (5, 166284), (6, 138570), (9, 92380), (10, 83142), (12, 69285), (15, 55428), (18, 46190), (20, 41571), (30, 27714), (31, 26820), (36, 23095), (45, 18476), (60, 13857), (62, 13410), (90, 9238), (93, 8940), (124, 6705), (149, 5580), (155, 5364), (180, 4619), (186, 4470), (279, 2980), (298, 2790), (310, 2682), (372, 2235), (447, 1860), (465, 1788), (558, 1490), (596, 1395), (620, 1341), (745, 1116), (894, 930)]