31880440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{271}}^1$

素因数の和:472

約数の個数: 64

約数和(自身を含む): 76671360

約数和(自身を除く): 44790920

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 173, 271, 340, 346, 542, 680, 692, 865, 1084, 1355, 1384, 1730, 2168, 2710, 2941, 3460, 4607, 5420, 5882, 6920, 9214, 10840, 11764, 14705, 18428, 23035, 23528, 29410, 36856, 46070, 46883, 58820, 92140, 93766, 117640, 184280, 187532, 234415, 375064, 468830, 797011, 937660, 1594022, 1875320, 3188044, 3985055, 6376088, 7970110, 15940220, 31880440]

約数ペア:

[(1, 31880440), (2, 15940220), (4, 7970110), (5, 6376088), (8, 3985055), (10, 3188044), (17, 1875320), (20, 1594022), (34, 937660), (40, 797011), (68, 468830), (85, 375064), (136, 234415), (170, 187532), (173, 184280), (271, 117640), (340, 93766), (346, 92140), (542, 58820), (680, 46883), (692, 46070), (865, 36856), (1084, 29410), (1355, 23528), (1384, 23035), (1730, 18428), (2168, 14705), (2710, 11764), (2941, 10840), (3460, 9214), (4607, 6920), (5420, 5882)]