180220360

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{1439}}^1$

素因数の和:1582

約数の個数: 64

約数和(自身を含む): 423014400

約数和(自身を除く): 242794040

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 101, 124, 155, 202, 248, 310, 404, 505, 620, 808, 1010, 1240, 1439, 2020, 2878, 3131, 4040, 5756, 6262, 7195, 11512, 12524, 14390, 15655, 25048, 28780, 31310, 44609, 57560, 62620, 89218, 125240, 145339, 178436, 223045, 290678, 356872, 446090, 581356, 726695, 892180, 1162712, 1453390, 1784360, 2906780, 4505509, 5813560, 9011018, 18022036, 22527545, 36044072, 45055090, 90110180, 180220360]

約数ペア:

[(1, 180220360), (2, 90110180), (4, 45055090), (5, 36044072), (8, 22527545), (10, 18022036), (20, 9011018), (31, 5813560), (40, 4505509), (62, 2906780), (101, 1784360), (124, 1453390), (155, 1162712), (202, 892180), (248, 726695), (310, 581356), (404, 446090), (505, 356872), (620, 290678), (808, 223045), (1010, 178436), (1240, 145339), (1439, 125240), (2020, 89218), (2878, 62620), (3131, 57560), (4040, 44609), (5756, 31310), (6262, 28780), (7195, 25048), (11512, 15655), (12524, 14390)]