20765040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2791}}^1$

素因数の和:2838

約数の個数: 80

約数和(自身を含む): 66471936

約数和(自身を除く): 45706896

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 2791, 3720, 5582, 7440, 8373, 11164, 13955, 16746, 22328, 27910, 33492, 41865, 44656, 55820, 66984, 83730, 86521, 111640, 133968, 167460, 173042, 223280, 259563, 334920, 346084, 432605, 519126, 669840, 692168, 865210, 1038252, 1297815, 1384336, 1730420, 2076504, 2595630, 3460840, 4153008, 5191260, 6921680, 10382520, 20765040]

約数ペア:

[(1, 20765040), (2, 10382520), (3, 6921680), (4, 5191260), (5, 4153008), (6, 3460840), (8, 2595630), (10, 2076504), (12, 1730420), (15, 1384336), (16, 1297815), (20, 1038252), (24, 865210), (30, 692168), (31, 669840), (40, 519126), (48, 432605), (60, 346084), (62, 334920), (80, 259563), (93, 223280), (120, 173042), (124, 167460), (155, 133968), (186, 111640), (240, 86521), (248, 83730), (310, 66984), (372, 55820), (465, 44656), (496, 41865), (620, 33492), (744, 27910), (930, 22328), (1240, 16746), (1488, 13955), (1860, 11164), (2480, 8373), (2791, 7440), (3720, 5582)]