81346440

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{857}}^1$

素因数の和:991

約数の個数: 128

約数和(自身を含む): 281698560

約数和(自身を除く): 200352120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 113, 120, 140, 168, 210, 226, 280, 339, 420, 452, 565, 678, 791, 840, 857, 904, 1130, 1356, 1582, 1695, 1714, 2260, 2373, 2571, 2712, 3164, 3390, 3428, 3955, 4285, 4520, 4746, 5142, 5999, 6328, 6780, 6856, 7910, 8570, 9492, 10284, 11865, 11998, 12855, 13560, 15820, 17140, 17997, 18984, 20568, 23730, 23996, 25710, 29995, 31640, 34280, 35994, 47460, 47992, 51420, 59990, 71988, 89985, 94920, 96841, 102840, 119980, 143976, 179970, 193682, 239960, 290523, 359940, 387364, 484205, 581046, 677887, 719880, 774728, 968410, 1162092, 1355774, 1452615, 1936820, 2033661, 2324184, 2711548, 2905230, 3389435, 3873640, 4067322, 5423096, 5810460, 6778870, 8134644, 10168305, 11620920, 13557740, 16269288, 20336610, 27115480, 40673220, 81346440]

約数ペア:

[(1, 81346440), (2, 40673220), (3, 27115480), (4, 20336610), (5, 16269288), (6, 13557740), (7, 11620920), (8, 10168305), (10, 8134644), (12, 6778870), (14, 5810460), (15, 5423096), (20, 4067322), (21, 3873640), (24, 3389435), (28, 2905230), (30, 2711548), (35, 2324184), (40, 2033661), (42, 1936820), (56, 1452615), (60, 1355774), (70, 1162092), (84, 968410), (105, 774728), (113, 719880), (120, 677887), (140, 581046), (168, 484205), (210, 387364), (226, 359940), (280, 290523), (339, 239960), (420, 193682), (452, 179970), (565, 143976), (678, 119980), (791, 102840), (840, 96841), (857, 94920), (904, 89985), (1130, 71988), (1356, 59990), (1582, 51420), (1695, 47992), (1714, 47460), (2260, 35994), (2373, 34280), (2571, 31640), (2712, 29995), (3164, 25710), (3390, 23996), (3428, 23730), (3955, 20568), (4285, 18984), (4520, 17997), (4746, 17140), (5142, 15820), (5999, 13560), (6328, 12855), (6780, 11998), (6856, 11865), (7910, 10284), (8570, 9492)]