20930520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13417}}^1$

素因数の和:13444

約数の個数: 64

約数和(自身を含む): 67626720

約数和(自身を除く): 46696200

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, 13417, 26834, 40251, 53668, 67085, 80502, 107336, 134170, 161004, 174421, 201255, 268340, 322008, 348842, 402510, 523263, 536680, 697684, 805020, 872105, 1046526, 1395368, 1610040, 1744210, 2093052, 2616315, 3488420, 4186104, 5232630, 6976840, 10465260, 20930520]

約数ペア:

[(1, 20930520), (2, 10465260), (3, 6976840), (4, 5232630), (5, 4186104), (6, 3488420), (8, 2616315), (10, 2093052), (12, 1744210), (13, 1610040), (15, 1395368), (20, 1046526), (24, 872105), (26, 805020), (30, 697684), (39, 536680), (40, 523263), (52, 402510), (60, 348842), (65, 322008), (78, 268340), (104, 201255), (120, 174421), (130, 161004), (156, 134170), (195, 107336), (260, 80502), (312, 67085), (390, 53668), (520, 40251), (780, 26834), (1560, 13417)]