42520840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{647}}^1$

素因数の和:742

約数の個数: 64

約数和(自身を含む): 100776960

約数和(自身を除く): 58256120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 53, 62, 106, 124, 155, 212, 248, 265, 310, 424, 530, 620, 647, 1060, 1240, 1294, 1643, 2120, 2588, 3235, 3286, 5176, 6470, 6572, 8215, 12940, 13144, 16430, 20057, 25880, 32860, 34291, 40114, 65720, 68582, 80228, 100285, 137164, 160456, 171455, 200570, 274328, 342910, 401140, 685820, 802280, 1063021, 1371640, 2126042, 4252084, 5315105, 8504168, 10630210, 21260420, 42520840]

約数ペア:

[(1, 42520840), (2, 21260420), (4, 10630210), (5, 8504168), (8, 5315105), (10, 4252084), (20, 2126042), (31, 1371640), (40, 1063021), (53, 802280), (62, 685820), (106, 401140), (124, 342910), (155, 274328), (212, 200570), (248, 171455), (265, 160456), (310, 137164), (424, 100285), (530, 80228), (620, 68582), (647, 65720), (1060, 40114), (1240, 34291), (1294, 32860), (1643, 25880), (2120, 20057), (2588, 16430), (3235, 13144), (3286, 12940), (5176, 8215), (6470, 6572)]