2781630

素因数分解:

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

素因数の和:1041

約数の個数: 48

約数和(自身を含む): 7473024

約数和(自身を除く): 4691394

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 90, 93, 155, 186, 279, 310, 465, 558, 930, 997, 1395, 1994, 2790, 2991, 4985, 5982, 8973, 9970, 14955, 17946, 29910, 30907, 44865, 61814, 89730, 92721, 154535, 185442, 278163, 309070, 463605, 556326, 927210, 1390815, 2781630]

約数ペア:

[(1, 2781630), (2, 1390815), (3, 927210), (5, 556326), (6, 463605), (9, 309070), (10, 278163), (15, 185442), (18, 154535), (30, 92721), (31, 89730), (45, 61814), (62, 44865), (90, 30907), (93, 29910), (155, 17946), (186, 14955), (279, 9970), (310, 8973), (465, 5982), (558, 4985), (930, 2991), (997, 2790), (1395, 1994)]