320433040

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1\times {\mathrm{463}}^1$

素因数の和:728

約数の個数: 80

約数和(自身を含む): 768450816

約数和(自身を除く): 448017776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 211, 328, 410, 422, 463, 656, 820, 844, 926, 1055, 1640, 1688, 1852, 2110, 2315, 3280, 3376, 3704, 4220, 4630, 7408, 8440, 8651, 9260, 16880, 17302, 18520, 18983, 34604, 37040, 37966, 43255, 69208, 75932, 86510, 94915, 97693, 138416, 151864, 173020, 189830, 195386, 303728, 346040, 379660, 390772, 488465, 692080, 759320, 781544, 976930, 1518640, 1563088, 1953860, 3907720, 4005413, 7815440, 8010826, 16021652, 20027065, 32043304, 40054130, 64086608, 80108260, 160216520, 320433040]

約数ペア:

[(1, 320433040), (2, 160216520), (4, 80108260), (5, 64086608), (8, 40054130), (10, 32043304), (16, 20027065), (20, 16021652), (40, 8010826), (41, 7815440), (80, 4005413), (82, 3907720), (164, 1953860), (205, 1563088), (211, 1518640), (328, 976930), (410, 781544), (422, 759320), (463, 692080), (656, 488465), (820, 390772), (844, 379660), (926, 346040), (1055, 303728), (1640, 195386), (1688, 189830), (1852, 173020), (2110, 151864), (2315, 138416), (3280, 97693), (3376, 94915), (3704, 86510), (4220, 75932), (4630, 69208), (7408, 43255), (8440, 37966), (8651, 37040), (9260, 34604), (16880, 18983), (17302, 18520)]