90289420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{1453}}^1$

素因数の和:1714

約数の個数: 48

約数和(自身を含む): 205188480

約数和(自身を除く): 114899060

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 239, 260, 478, 956, 1195, 1453, 2390, 2906, 3107, 4780, 5812, 6214, 7265, 12428, 14530, 15535, 18889, 29060, 31070, 37778, 62140, 75556, 94445, 188890, 347267, 377780, 694534, 1389068, 1736335, 3472670, 4514471, 6945340, 9028942, 18057884, 22572355, 45144710, 90289420]

約数ペア:

[(1, 90289420), (2, 45144710), (4, 22572355), (5, 18057884), (10, 9028942), (13, 6945340), (20, 4514471), (26, 3472670), (52, 1736335), (65, 1389068), (130, 694534), (239, 377780), (260, 347267), (478, 188890), (956, 94445), (1195, 75556), (1453, 62140), (2390, 37778), (2906, 31070), (3107, 29060), (4780, 18889), (5812, 15535), (6214, 14530), (7265, 12428)]