20044700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{907}}^1$

素因数の和:951

約数の個数: 72

約数和(自身を含む): 49653072

約数和(自身を除く): 29608372

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 25, 26, 34, 50, 52, 65, 68, 85, 100, 130, 170, 221, 260, 325, 340, 425, 442, 650, 850, 884, 907, 1105, 1300, 1700, 1814, 2210, 3628, 4420, 4535, 5525, 9070, 11050, 11791, 15419, 18140, 22100, 22675, 23582, 30838, 45350, 47164, 58955, 61676, 77095, 90700, 117910, 154190, 200447, 235820, 294775, 308380, 385475, 400894, 589550, 770950, 801788, 1002235, 1179100, 1541900, 2004470, 4008940, 5011175, 10022350, 20044700]

約数ペア:

[(1, 20044700), (2, 10022350), (4, 5011175), (5, 4008940), (10, 2004470), (13, 1541900), (17, 1179100), (20, 1002235), (25, 801788), (26, 770950), (34, 589550), (50, 400894), (52, 385475), (65, 308380), (68, 294775), (85, 235820), (100, 200447), (130, 154190), (170, 117910), (221, 90700), (260, 77095), (325, 61676), (340, 58955), (425, 47164), (442, 45350), (650, 30838), (850, 23582), (884, 22675), (907, 22100), (1105, 18140), (1300, 15419), (1700, 11791), (1814, 11050), (2210, 9070), (3628, 5525), (4420, 4535)]