81563820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1973}}^1$

素因数の和:2051

約数の個数: 96

約数和(自身を含む): 250713792

約数和(自身を除く): 169149972

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 53, 60, 65, 78, 106, 130, 156, 159, 195, 212, 260, 265, 318, 390, 530, 636, 689, 780, 795, 1060, 1378, 1590, 1973, 2067, 2756, 3180, 3445, 3946, 4134, 5919, 6890, 7892, 8268, 9865, 10335, 11838, 13780, 19730, 20670, 23676, 25649, 29595, 39460, 41340, 51298, 59190, 76947, 102596, 104569, 118380, 128245, 153894, 209138, 256490, 307788, 313707, 384735, 418276, 512980, 522845, 627414, 769470, 1045690, 1254828, 1359397, 1538940, 1568535, 2091380, 2718794, 3137070, 4078191, 5437588, 6274140, 6796985, 8156382, 13593970, 16312764, 20390955, 27187940, 40781910, 81563820]

約数ペア:

[(1, 81563820), (2, 40781910), (3, 27187940), (4, 20390955), (5, 16312764), (6, 13593970), (10, 8156382), (12, 6796985), (13, 6274140), (15, 5437588), (20, 4078191), (26, 3137070), (30, 2718794), (39, 2091380), (52, 1568535), (53, 1538940), (60, 1359397), (65, 1254828), (78, 1045690), (106, 769470), (130, 627414), (156, 522845), (159, 512980), (195, 418276), (212, 384735), (260, 313707), (265, 307788), (318, 256490), (390, 209138), (530, 153894), (636, 128245), (689, 118380), (780, 104569), (795, 102596), (1060, 76947), (1378, 59190), (1590, 51298), (1973, 41340), (2067, 39460), (2756, 29595), (3180, 25649), (3445, 23676), (3946, 20670), (4134, 19730), (5919, 13780), (6890, 11838), (7892, 10335), (8268, 9865)]