31915120

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{757}}^1$

素因数の和:818

約数の個数: 80

約数和(自身を含む): 81209088

約数和(自身を除く): 49293968

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 34, 40, 62, 68, 80, 85, 124, 136, 155, 170, 248, 272, 310, 340, 496, 527, 620, 680, 757, 1054, 1240, 1360, 1514, 2108, 2480, 2635, 3028, 3785, 4216, 5270, 6056, 7570, 8432, 10540, 12112, 12869, 15140, 21080, 23467, 25738, 30280, 42160, 46934, 51476, 60560, 64345, 93868, 102952, 117335, 128690, 187736, 205904, 234670, 257380, 375472, 398939, 469340, 514760, 797878, 938680, 1029520, 1595756, 1877360, 1994695, 3191512, 3989390, 6383024, 7978780, 15957560, 31915120]

約数ペア:

[(1, 31915120), (2, 15957560), (4, 7978780), (5, 6383024), (8, 3989390), (10, 3191512), (16, 1994695), (17, 1877360), (20, 1595756), (31, 1029520), (34, 938680), (40, 797878), (62, 514760), (68, 469340), (80, 398939), (85, 375472), (124, 257380), (136, 234670), (155, 205904), (170, 187736), (248, 128690), (272, 117335), (310, 102952), (340, 93868), (496, 64345), (527, 60560), (620, 51476), (680, 46934), (757, 42160), (1054, 30280), (1240, 25738), (1360, 23467), (1514, 21080), (2108, 15140), (2480, 12869), (2635, 12112), (3028, 10540), (3785, 8432), (4216, 7570), (5270, 6056)]