81586260

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{887}}^1$

素因数の和:982

約数の個数: 144

約数和(自身を含む): 287030016

約数和(自身を除く): 205443756

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 73, 84, 90, 105, 126, 140, 146, 180, 210, 219, 252, 292, 315, 365, 420, 438, 511, 630, 657, 730, 876, 887, 1022, 1095, 1260, 1314, 1460, 1533, 1774, 2044, 2190, 2555, 2628, 2661, 3066, 3285, 3548, 4380, 4435, 4599, 5110, 5322, 6132, 6209, 6570, 7665, 7983, 8870, 9198, 10220, 10644, 12418, 13140, 13305, 15330, 15966, 17740, 18396, 18627, 22995, 24836, 26610, 30660, 31045, 31932, 37254, 39915, 45990, 53220, 55881, 62090, 64751, 74508, 79830, 91980, 93135, 111762, 124180, 129502, 159660, 186270, 194253, 223524, 259004, 279405, 323755, 372540, 388506, 453257, 558810, 582759, 647510, 777012, 906514, 971265, 1117620, 1165518, 1295020, 1359771, 1813028, 1942530, 2266285, 2331036, 2719542, 2913795, 3885060, 4079313, 4532570, 5439084, 5827590, 6798855, 8158626, 9065140, 11655180, 13597710, 16317252, 20396565, 27195420, 40793130, 81586260]

約数ペア:

[(1, 81586260), (2, 40793130), (3, 27195420), (4, 20396565), (5, 16317252), (6, 13597710), (7, 11655180), (9, 9065140), (10, 8158626), (12, 6798855), (14, 5827590), (15, 5439084), (18, 4532570), (20, 4079313), (21, 3885060), (28, 2913795), (30, 2719542), (35, 2331036), (36, 2266285), (42, 1942530), (45, 1813028), (60, 1359771), (63, 1295020), (70, 1165518), (73, 1117620), (84, 971265), (90, 906514), (105, 777012), (126, 647510), (140, 582759), (146, 558810), (180, 453257), (210, 388506), (219, 372540), (252, 323755), (292, 279405), (315, 259004), (365, 223524), (420, 194253), (438, 186270), (511, 159660), (630, 129502), (657, 124180), (730, 111762), (876, 93135), (887, 91980), (1022, 79830), (1095, 74508), (1260, 64751), (1314, 62090), (1460, 55881), (1533, 53220), (1774, 45990), (2044, 39915), (2190, 37254), (2555, 31932), (2628, 31045), (2661, 30660), (3066, 26610), (3285, 24836), (3548, 22995), (4380, 18627), (4435, 18396), (4599, 17740), (5110, 15966), (5322, 15330), (6132, 13305), (6209, 13140), (6570, 12418), (7665, 10644), (7983, 10220), (8870, 9198)]