1279980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{547}}^1$

素因数の和:575

約数の個数: 72

約数和(自身を含む): 4188912

約数和(自身を除く): 2908932

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 547, 585, 780, 1094, 1170, 1641, 2188, 2340, 2735, 3282, 4923, 5470, 6564, 7111, 8205, 9846, 10940, 14222, 16410, 19692, 21333, 24615, 28444, 32820, 35555, 42666, 49230, 63999, 71110, 85332, 98460, 106665, 127998, 142220, 213330, 255996, 319995, 426660, 639990, 1279980]

約数ペア:

[(1, 1279980), (2, 639990), (3, 426660), (4, 319995), (5, 255996), (6, 213330), (9, 142220), (10, 127998), (12, 106665), (13, 98460), (15, 85332), (18, 71110), (20, 63999), (26, 49230), (30, 42666), (36, 35555), (39, 32820), (45, 28444), (52, 24615), (60, 21333), (65, 19692), (78, 16410), (90, 14222), (117, 10940), (130, 9846), (156, 8205), (180, 7111), (195, 6564), (234, 5470), (260, 4923), (390, 3282), (468, 2735), (547, 2340), (585, 2188), (780, 1641), (1094, 1170)]