20536380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{421}}^1$

素因数の和:707

約数の個数: 72

約数和(自身を含む): 62672064

約数和(自身を除く): 42135684

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 271, 421, 542, 813, 842, 1084, 1263, 1355, 1626, 1684, 2105, 2439, 2526, 2710, 3252, 3789, 4065, 4210, 4878, 5052, 5420, 6315, 7578, 8130, 8420, 9756, 12195, 12630, 15156, 16260, 18945, 24390, 25260, 37890, 48780, 75780, 114091, 228182, 342273, 456364, 570455, 684546, 1026819, 1140910, 1369092, 1711365, 2053638, 2281820, 3422730, 4107276, 5134095, 6845460, 10268190, 20536380]

約数ペア:

[(1, 20536380), (2, 10268190), (3, 6845460), (4, 5134095), (5, 4107276), (6, 3422730), (9, 2281820), (10, 2053638), (12, 1711365), (15, 1369092), (18, 1140910), (20, 1026819), (30, 684546), (36, 570455), (45, 456364), (60, 342273), (90, 228182), (180, 114091), (271, 75780), (421, 48780), (542, 37890), (813, 25260), (842, 24390), (1084, 18945), (1263, 16260), (1355, 15156), (1626, 12630), (1684, 12195), (2105, 9756), (2439, 8420), (2526, 8130), (2710, 7578), (3252, 6315), (3789, 5420), (4065, 5052), (4210, 4878)]