205840620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{997}}^1$

素因数の和:1080

約数の個数: 144

約数和(自身を含む): 662608128

約数和(自身を除く): 456767508

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 37, 45, 60, 62, 74, 90, 93, 111, 124, 148, 155, 180, 185, 186, 222, 279, 310, 333, 370, 372, 444, 465, 555, 558, 620, 666, 740, 930, 997, 1110, 1116, 1147, 1332, 1395, 1665, 1860, 1994, 2220, 2294, 2790, 2991, 3330, 3441, 3988, 4588, 4985, 5580, 5735, 5982, 6660, 6882, 8973, 9970, 10323, 11470, 11964, 13764, 14955, 17205, 17946, 19940, 20646, 22940, 29910, 30907, 34410, 35892, 36889, 41292, 44865, 51615, 59820, 61814, 68820, 73778, 89730, 92721, 103230, 110667, 123628, 147556, 154535, 179460, 184445, 185442, 206460, 221334, 278163, 309070, 332001, 368890, 370884, 442668, 463605, 553335, 556326, 618140, 664002, 737780, 927210, 1106670, 1112652, 1143559, 1328004, 1390815, 1660005, 1854420, 2213340, 2287118, 2781630, 3320010, 3430677, 4574236, 5563260, 5717795, 6640020, 6861354, 10292031, 11435590, 13722708, 17153385, 20584062, 22871180, 34306770, 41168124, 51460155, 68613540, 102920310, 205840620]

約数ペア:

[(1, 205840620), (2, 102920310), (3, 68613540), (4, 51460155), (5, 41168124), (6, 34306770), (9, 22871180), (10, 20584062), (12, 17153385), (15, 13722708), (18, 11435590), (20, 10292031), (30, 6861354), (31, 6640020), (36, 5717795), (37, 5563260), (45, 4574236), (60, 3430677), (62, 3320010), (74, 2781630), (90, 2287118), (93, 2213340), (111, 1854420), (124, 1660005), (148, 1390815), (155, 1328004), (180, 1143559), (185, 1112652), (186, 1106670), (222, 927210), (279, 737780), (310, 664002), (333, 618140), (370, 556326), (372, 553335), (444, 463605), (465, 442668), (555, 370884), (558, 368890), (620, 332001), (666, 309070), (740, 278163), (930, 221334), (997, 206460), (1110, 185442), (1116, 184445), (1147, 179460), (1332, 154535), (1395, 147556), (1665, 123628), (1860, 110667), (1994, 103230), (2220, 92721), (2294, 89730), (2790, 73778), (2991, 68820), (3330, 61814), (3441, 59820), (3988, 51615), (4588, 44865), (4985, 41292), (5580, 36889), (5735, 35892), (5982, 34410), (6660, 30907), (6882, 29910), (8973, 22940), (9970, 20646), (10323, 19940), (11470, 17946), (11964, 17205), (13764, 14955)]