81706380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{857}}^1$

素因数の和:1103

約数の個数: 96

約数和(自身を含む): 262918656

約数和(自身を除く): 181212276

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 227, 420, 454, 681, 857, 908, 1135, 1362, 1589, 1714, 2270, 2571, 2724, 3178, 3405, 3428, 4285, 4540, 4767, 5142, 5999, 6356, 6810, 7945, 8570, 9534, 10284, 11998, 12855, 13620, 15890, 17140, 17997, 19068, 23835, 23996, 25710, 29995, 31780, 35994, 47670, 51420, 59990, 71988, 89985, 95340, 119980, 179970, 194539, 359940, 389078, 583617, 778156, 972695, 1167234, 1361773, 1945390, 2334468, 2723546, 2918085, 3890780, 4085319, 5447092, 5836170, 6808865, 8170638, 11672340, 13617730, 16341276, 20426595, 27235460, 40853190, 81706380]

約数ペア:

[(1, 81706380), (2, 40853190), (3, 27235460), (4, 20426595), (5, 16341276), (6, 13617730), (7, 11672340), (10, 8170638), (12, 6808865), (14, 5836170), (15, 5447092), (20, 4085319), (21, 3890780), (28, 2918085), (30, 2723546), (35, 2334468), (42, 1945390), (60, 1361773), (70, 1167234), (84, 972695), (105, 778156), (140, 583617), (210, 389078), (227, 359940), (420, 194539), (454, 179970), (681, 119980), (857, 95340), (908, 89985), (1135, 71988), (1362, 59990), (1589, 51420), (1714, 47670), (2270, 35994), (2571, 31780), (2724, 29995), (3178, 25710), (3405, 23996), (3428, 23835), (4285, 19068), (4540, 17997), (4767, 17140), (5142, 15890), (5999, 13620), (6356, 12855), (6810, 11998), (7945, 10284), (8570, 9534)]