128841960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{82591}}^1$

素因数の和:82618

約数の個数: 64

約数和(自身を含む): 416263680

約数和(自身を除く): 287421720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 82591, 165182, 247773, 330364, 412955, 495546, 660728, 825910, 991092, 1073683, 1238865, 1651820, 1982184, 2147366, 2477730, 3221049, 3303640, 4294732, 4955460, 5368415, 6442098, 8589464, 9910920, 10736830, 12884196, 16105245, 21473660, 25768392, 32210490, 42947320, 64420980, 128841960]

約数ペア:

[(1, 128841960), (2, 64420980), (3, 42947320), (4, 32210490), (5, 25768392), (6, 21473660), (8, 16105245), (10, 12884196), (12, 10736830), (13, 9910920), (15, 8589464), (20, 6442098), (24, 5368415), (26, 4955460), (30, 4294732), (39, 3303640), (40, 3221049), (52, 2477730), (60, 2147366), (65, 1982184), (78, 1651820), (104, 1238865), (120, 1073683), (130, 991092), (156, 825910), (195, 660728), (260, 495546), (312, 412955), (390, 330364), (520, 247773), (780, 165182), (1560, 82591)]