31212450

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{139}}^1\times {\mathrm{499}}^1$

素因数の和:656

約数の個数: 72

約数和(自身を含む): 84630000

約数和(自身を除く): 53417550

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 139, 150, 225, 278, 417, 450, 499, 695, 834, 998, 1251, 1390, 1497, 2085, 2495, 2502, 2994, 3475, 4170, 4491, 4990, 6255, 6950, 7485, 8982, 10425, 12475, 12510, 14970, 20850, 22455, 24950, 31275, 37425, 44910, 62550, 69361, 74850, 112275, 138722, 208083, 224550, 346805, 416166, 624249, 693610, 1040415, 1248498, 1734025, 2080830, 3121245, 3468050, 5202075, 6242490, 10404150, 15606225, 31212450]

約数ペア:

[(1, 31212450), (2, 15606225), (3, 10404150), (5, 6242490), (6, 5202075), (9, 3468050), (10, 3121245), (15, 2080830), (18, 1734025), (25, 1248498), (30, 1040415), (45, 693610), (50, 624249), (75, 416166), (90, 346805), (139, 224550), (150, 208083), (225, 138722), (278, 112275), (417, 74850), (450, 69361), (499, 62550), (695, 44910), (834, 37425), (998, 31275), (1251, 24950), (1390, 22455), (1497, 20850), (2085, 14970), (2495, 12510), (2502, 12475), (2994, 10425), (3475, 8982), (4170, 7485), (4491, 6950), (4990, 6255)]