306981160

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{197}}^1\times {\mathrm{239}}^1$

素因数の和:610

約数の個数: 64

約数和(自身を含む): 701395200

約数和(自身を除く): 394414040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 197, 239, 326, 394, 478, 652, 788, 815, 956, 985, 1195, 1304, 1576, 1630, 1912, 1970, 2390, 3260, 3940, 4780, 6520, 7880, 9560, 32111, 38957, 47083, 64222, 77914, 94166, 128444, 155828, 160555, 188332, 194785, 235415, 256888, 311656, 321110, 376664, 389570, 470830, 642220, 779140, 941660, 1284440, 1558280, 1883320, 7674529, 15349058, 30698116, 38372645, 61396232, 76745290, 153490580, 306981160]

約数ペア:

[(1, 306981160), (2, 153490580), (4, 76745290), (5, 61396232), (8, 38372645), (10, 30698116), (20, 15349058), (40, 7674529), (163, 1883320), (197, 1558280), (239, 1284440), (326, 941660), (394, 779140), (478, 642220), (652, 470830), (788, 389570), (815, 376664), (956, 321110), (985, 311656), (1195, 256888), (1304, 235415), (1576, 194785), (1630, 188332), (1912, 160555), (1970, 155828), (2390, 128444), (3260, 94166), (3940, 77914), (4780, 64222), (6520, 47083), (7880, 38957), (9560, 32111)]