31049820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:244

約数の個数: 144

約数和(自身を含む): 101818080

約数和(自身を除く): 70768260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 73, 85, 90, 102, 139, 146, 153, 170, 180, 204, 219, 255, 278, 292, 306, 340, 365, 417, 438, 510, 556, 612, 657, 695, 730, 765, 834, 876, 1020, 1095, 1241, 1251, 1314, 1390, 1460, 1530, 1668, 2085, 2190, 2363, 2482, 2502, 2628, 2780, 3060, 3285, 3723, 4170, 4380, 4726, 4964, 5004, 6205, 6255, 6570, 7089, 7446, 8340, 9452, 10147, 11169, 11815, 12410, 12510, 13140, 14178, 14892, 18615, 20294, 21267, 22338, 23630, 24820, 25020, 28356, 30441, 35445, 37230, 40588, 42534, 44676, 47260, 50735, 55845, 60882, 70890, 74460, 85068, 91323, 101470, 106335, 111690, 121764, 141780, 152205, 172499, 182646, 202940, 212670, 223380, 304410, 344998, 365292, 425340, 456615, 517497, 608820, 689996, 862495, 913230, 1034994, 1552491, 1724990, 1826460, 2069988, 2587485, 3104982, 3449980, 5174970, 6209964, 7762455, 10349940, 15524910, 31049820]

約数ペア:

[(1, 31049820), (2, 15524910), (3, 10349940), (4, 7762455), (5, 6209964), (6, 5174970), (9, 3449980), (10, 3104982), (12, 2587485), (15, 2069988), (17, 1826460), (18, 1724990), (20, 1552491), (30, 1034994), (34, 913230), (36, 862495), (45, 689996), (51, 608820), (60, 517497), (68, 456615), (73, 425340), (85, 365292), (90, 344998), (102, 304410), (139, 223380), (146, 212670), (153, 202940), (170, 182646), (180, 172499), (204, 152205), (219, 141780), (255, 121764), (278, 111690), (292, 106335), (306, 101470), (340, 91323), (365, 85068), (417, 74460), (438, 70890), (510, 60882), (556, 55845), (612, 50735), (657, 47260), (695, 44676), (730, 42534), (765, 40588), (834, 37230), (876, 35445), (1020, 30441), (1095, 28356), (1241, 25020), (1251, 24820), (1314, 23630), (1390, 22338), (1460, 21267), (1530, 20294), (1668, 18615), (2085, 14892), (2190, 14178), (2363, 13140), (2482, 12510), (2502, 12410), (2628, 11815), (2780, 11169), (3060, 10147), (3285, 9452), (3723, 8340), (4170, 7446), (4380, 7089), (4726, 6570), (4964, 6255), (5004, 6205)]