500000040

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{154321}}^1$

素因数の和:154344

約数の個数: 80

約数和(自身を含む): 1680566580

約数和(自身を除く): 1180566540

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 360, 405, 540, 648, 810, 1080, 1620, 3240, 154321, 308642, 462963, 617284, 771605, 925926, 1234568, 1388889, 1543210, 1851852, 2314815, 2777778, 3086420, 3703704, 4166667, 4629630, 5555556, 6172840, 6944445, 8333334, 9259260, 11111112, 12500001, 13888890, 16666668, 18518520, 20833335, 25000002, 27777780, 33333336, 41666670, 50000004, 55555560, 62500005, 83333340, 100000008, 125000010, 166666680, 250000020, 500000040]

約数ペア:

[(1, 500000040), (2, 250000020), (3, 166666680), (4, 125000010), (5, 100000008), (6, 83333340), (8, 62500005), (9, 55555560), (10, 50000004), (12, 41666670), (15, 33333336), (18, 27777780), (20, 25000002), (24, 20833335), (27, 18518520), (30, 16666668), (36, 13888890), (40, 12500001), (45, 11111112), (54, 9259260), (60, 8333334), (72, 6944445), (81, 6172840), (90, 5555556), (108, 4629630), (120, 4166667), (135, 3703704), (162, 3086420), (180, 2777778), (216, 2314815), (270, 1851852), (324, 1543210), (360, 1388889), (405, 1234568), (540, 925926), (648, 771605), (810, 617284), (1080, 462963), (1620, 308642), (3240, 154321)]