2008647940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^2\times {\mathrm{1721}}^1$

素因数の和:1877

約数の個数: 72

約数和(自身を含む): 4614126552

約数和(自身を除く): 2605478612

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 260, 268, 335, 670, 871, 1340, 1721, 1742, 3442, 3484, 4355, 4489, 6884, 8605, 8710, 8978, 17210, 17420, 17956, 22373, 22445, 34420, 44746, 44890, 58357, 89492, 89780, 111865, 115307, 116714, 223730, 230614, 233428, 291785, 447460, 461228, 576535, 583570, 1153070, 1167140, 1498991, 2306140, 2997982, 5995964, 7494955, 7725569, 14989910, 15451138, 29979820, 30902276, 38627845, 77255690, 100432397, 154511380, 200864794, 401729588, 502161985, 1004323970, 2008647940]

約数ペア:

[(1, 2008647940), (2, 1004323970), (4, 502161985), (5, 401729588), (10, 200864794), (13, 154511380), (20, 100432397), (26, 77255690), (52, 38627845), (65, 30902276), (67, 29979820), (130, 15451138), (134, 14989910), (260, 7725569), (268, 7494955), (335, 5995964), (670, 2997982), (871, 2306140), (1340, 1498991), (1721, 1167140), (1742, 1153070), (3442, 583570), (3484, 576535), (4355, 461228), (4489, 447460), (6884, 291785), (8605, 233428), (8710, 230614), (8978, 223730), (17210, 116714), (17420, 115307), (17956, 111865), (22373, 89780), (22445, 89492), (34420, 58357), (44746, 44890)]