22501960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{397}}^1$

素因数の和:530

約数の個数: 64

約数和(自身を含む): 55162800

約数和(自身を除く): 32660840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 109, 130, 218, 260, 397, 436, 520, 545, 794, 872, 1090, 1417, 1588, 1985, 2180, 2834, 3176, 3970, 4360, 5161, 5668, 7085, 7940, 10322, 11336, 14170, 15880, 20644, 25805, 28340, 41288, 43273, 51610, 56680, 86546, 103220, 173092, 206440, 216365, 346184, 432730, 562549, 865460, 1125098, 1730920, 2250196, 2812745, 4500392, 5625490, 11250980, 22501960]

約数ペア:

[(1, 22501960), (2, 11250980), (4, 5625490), (5, 4500392), (8, 2812745), (10, 2250196), (13, 1730920), (20, 1125098), (26, 865460), (40, 562549), (52, 432730), (65, 346184), (104, 216365), (109, 206440), (130, 173092), (218, 103220), (260, 86546), (397, 56680), (436, 51610), (520, 43273), (545, 41288), (794, 28340), (872, 25805), (1090, 20644), (1417, 15880), (1588, 14170), (1985, 11336), (2180, 10322), (2834, 7940), (3176, 7085), (3970, 5668), (4360, 5161)]