21961680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7039}}^1$

素因数の和:7068

約数の個数: 80

約数和(自身を含む): 73328640

約数和(自身を除く): 51366960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 7039, 14078, 21117, 28156, 35195, 42234, 56312, 70390, 84468, 91507, 105585, 112624, 140780, 168936, 183014, 211170, 274521, 281560, 337872, 366028, 422340, 457535, 549042, 563120, 732056, 844680, 915070, 1098084, 1372605, 1464112, 1689360, 1830140, 2196168, 2745210, 3660280, 4392336, 5490420, 7320560, 10980840, 21961680]

約数ペア:

[(1, 21961680), (2, 10980840), (3, 7320560), (4, 5490420), (5, 4392336), (6, 3660280), (8, 2745210), (10, 2196168), (12, 1830140), (13, 1689360), (15, 1464112), (16, 1372605), (20, 1098084), (24, 915070), (26, 844680), (30, 732056), (39, 563120), (40, 549042), (48, 457535), (52, 422340), (60, 366028), (65, 337872), (78, 281560), (80, 274521), (104, 211170), (120, 183014), (130, 168936), (156, 140780), (195, 112624), (208, 105585), (240, 91507), (260, 84468), (312, 70390), (390, 56312), (520, 42234), (624, 35195), (780, 28156), (1040, 21117), (1560, 14078), (3120, 7039)]