8474940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{239}}^1$

素因数の和:451

約数の個数: 72

約数和(自身を含む): 25945920

約数和(自身を除く): 17470980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 197, 239, 394, 478, 591, 717, 788, 956, 985, 1182, 1195, 1434, 1773, 1970, 2151, 2364, 2390, 2868, 2955, 3546, 3585, 3940, 4302, 4780, 5910, 7092, 7170, 8604, 8865, 10755, 11820, 14340, 17730, 21510, 35460, 43020, 47083, 94166, 141249, 188332, 235415, 282498, 423747, 470830, 564996, 706245, 847494, 941660, 1412490, 1694988, 2118735, 2824980, 4237470, 8474940]

約数ペア:

[(1, 8474940), (2, 4237470), (3, 2824980), (4, 2118735), (5, 1694988), (6, 1412490), (9, 941660), (10, 847494), (12, 706245), (15, 564996), (18, 470830), (20, 423747), (30, 282498), (36, 235415), (45, 188332), (60, 141249), (90, 94166), (180, 47083), (197, 43020), (239, 35460), (394, 21510), (478, 17730), (591, 14340), (717, 11820), (788, 10755), (956, 8865), (985, 8604), (1182, 7170), (1195, 7092), (1434, 5910), (1773, 4780), (1970, 4302), (2151, 3940), (2364, 3585), (2390, 3546), (2868, 2955)]