81354540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{229}}^1$

素因数の和:463

約数の個数: 96

約数和(自身を含む): 237404160

約数和(自身を除く): 156049620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 191, 229, 310, 372, 382, 458, 465, 573, 620, 687, 764, 916, 930, 955, 1145, 1146, 1374, 1860, 1910, 2290, 2292, 2748, 2865, 3435, 3820, 4580, 5730, 5921, 6870, 7099, 11460, 11842, 13740, 14198, 17763, 21297, 23684, 28396, 29605, 35495, 35526, 42594, 43739, 59210, 70990, 71052, 85188, 87478, 88815, 106485, 118420, 131217, 141980, 174956, 177630, 212970, 218695, 262434, 355260, 425940, 437390, 524868, 656085, 874780, 1312170, 1355909, 2624340, 2711818, 4067727, 5423636, 6779545, 8135454, 13559090, 16270908, 20338635, 27118180, 40677270, 81354540]

約数ペア:

[(1, 81354540), (2, 40677270), (3, 27118180), (4, 20338635), (5, 16270908), (6, 13559090), (10, 8135454), (12, 6779545), (15, 5423636), (20, 4067727), (30, 2711818), (31, 2624340), (60, 1355909), (62, 1312170), (93, 874780), (124, 656085), (155, 524868), (186, 437390), (191, 425940), (229, 355260), (310, 262434), (372, 218695), (382, 212970), (458, 177630), (465, 174956), (573, 141980), (620, 131217), (687, 118420), (764, 106485), (916, 88815), (930, 87478), (955, 85188), (1145, 71052), (1146, 70990), (1374, 59210), (1860, 43739), (1910, 42594), (2290, 35526), (2292, 35495), (2748, 29605), (2865, 28396), (3435, 23684), (3820, 21297), (4580, 17763), (5730, 14198), (5921, 13740), (6870, 11842), (7099, 11460)]