85457580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{331}}^2$

素因数の和:687

約数の個数: 72

約数和(自身を含む): 258468336

約数和(自身を除く): 173010756

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 331, 390, 662, 780, 993, 1324, 1655, 1986, 3310, 3972, 4303, 4965, 6620, 8606, 9930, 12909, 17212, 19860, 21515, 25818, 43030, 51636, 64545, 86060, 109561, 129090, 219122, 258180, 328683, 438244, 547805, 657366, 1095610, 1314732, 1424293, 1643415, 2191220, 2848586, 3286830, 4272879, 5697172, 6573660, 7121465, 8545758, 14242930, 17091516, 21364395, 28485860, 42728790, 85457580]

約数ペア:

[(1, 85457580), (2, 42728790), (3, 28485860), (4, 21364395), (5, 17091516), (6, 14242930), (10, 8545758), (12, 7121465), (13, 6573660), (15, 5697172), (20, 4272879), (26, 3286830), (30, 2848586), (39, 2191220), (52, 1643415), (60, 1424293), (65, 1314732), (78, 1095610), (130, 657366), (156, 547805), (195, 438244), (260, 328683), (331, 258180), (390, 219122), (662, 129090), (780, 109561), (993, 86060), (1324, 64545), (1655, 51636), (1986, 43030), (3310, 25818), (3972, 21515), (4303, 19860), (4965, 17212), (6620, 12909), (8606, 9930)]