81242980

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{911}}^1$

素因数の和:954

約数の個数: 96

約数和(自身を含む): 214502400

約数和(自身を除く): 133259420

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 343, 364, 455, 490, 637, 686, 910, 911, 980, 1274, 1372, 1715, 1820, 1822, 2548, 3185, 3430, 3644, 4459, 4555, 6370, 6377, 6860, 8918, 9110, 11843, 12740, 12754, 17836, 18220, 22295, 23686, 25508, 31885, 44590, 44639, 47372, 59215, 63770, 82901, 89180, 89278, 118430, 127540, 165802, 178556, 223195, 236860, 312473, 331604, 414505, 446390, 580307, 624946, 829010, 892780, 1160614, 1249892, 1562365, 1658020, 2321228, 2901535, 3124730, 4062149, 5803070, 6249460, 8124298, 11606140, 16248596, 20310745, 40621490, 81242980]

約数ペア:

[(1, 81242980), (2, 40621490), (4, 20310745), (5, 16248596), (7, 11606140), (10, 8124298), (13, 6249460), (14, 5803070), (20, 4062149), (26, 3124730), (28, 2901535), (35, 2321228), (49, 1658020), (52, 1562365), (65, 1249892), (70, 1160614), (91, 892780), (98, 829010), (130, 624946), (140, 580307), (182, 446390), (196, 414505), (245, 331604), (260, 312473), (343, 236860), (364, 223195), (455, 178556), (490, 165802), (637, 127540), (686, 118430), (910, 89278), (911, 89180), (980, 82901), (1274, 63770), (1372, 59215), (1715, 47372), (1820, 44639), (1822, 44590), (2548, 31885), (3185, 25508), (3430, 23686), (3644, 22295), (4459, 18220), (4555, 17836), (6370, 12754), (6377, 12740), (6860, 11843), (8918, 9110)]