18136240

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:218

約数の個数: 80

約数和(自身を含む): 44568576

約数和(自身を除く): 26432336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 71, 80, 103, 124, 142, 155, 206, 248, 284, 310, 355, 412, 496, 515, 568, 620, 710, 824, 1030, 1136, 1240, 1420, 1648, 2060, 2201, 2480, 2840, 3193, 4120, 4402, 5680, 6386, 7313, 8240, 8804, 11005, 12772, 14626, 15965, 17608, 22010, 25544, 29252, 31930, 35216, 36565, 44020, 51088, 58504, 63860, 73130, 88040, 117008, 127720, 146260, 176080, 226703, 255440, 292520, 453406, 585040, 906812, 1133515, 1813624, 2267030, 3627248, 4534060, 9068120, 18136240]

約数ペア:

[(1, 18136240), (2, 9068120), (4, 4534060), (5, 3627248), (8, 2267030), (10, 1813624), (16, 1133515), (20, 906812), (31, 585040), (40, 453406), (62, 292520), (71, 255440), (80, 226703), (103, 176080), (124, 146260), (142, 127720), (155, 117008), (206, 88040), (248, 73130), (284, 63860), (310, 58504), (355, 51088), (412, 44020), (496, 36565), (515, 35216), (568, 31930), (620, 29252), (710, 25544), (824, 22010), (1030, 17608), (1136, 15965), (1240, 14626), (1420, 12772), (1648, 11005), (2060, 8804), (2201, 8240), (2480, 7313), (2840, 6386), (3193, 5680), (4120, 4402)]