123478680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79153}}^1$

素因数の和:79180

約数の個数: 64

約数和(自身を含む): 398936160

約数和(自身を除く): 275457480

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, 79153, 158306, 237459, 316612, 395765, 474918, 633224, 791530, 949836, 1028989, 1187295, 1583060, 1899672, 2057978, 2374590, 3086967, 3166120, 4115956, 4749180, 5144945, 6173934, 8231912, 9498360, 10289890, 12347868, 15434835, 20579780, 24695736, 30869670, 41159560, 61739340, 123478680]

約数ペア:

[(1, 123478680), (2, 61739340), (3, 41159560), (4, 30869670), (5, 24695736), (6, 20579780), (8, 15434835), (10, 12347868), (12, 10289890), (13, 9498360), (15, 8231912), (20, 6173934), (24, 5144945), (26, 4749180), (30, 4115956), (39, 3166120), (40, 3086967), (52, 2374590), (60, 2057978), (65, 1899672), (78, 1583060), (104, 1187295), (120, 1028989), (130, 949836), (156, 791530), (195, 633224), (260, 474918), (312, 395765), (390, 316612), (520, 237459), (780, 158306), (1560, 79153)]