81197220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2539}}^1$

素因数の和:2605

約数の個数: 96

約数和(自身を含む): 250911360

約数和(自身を除く): 169714140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 41, 52, 60, 65, 78, 82, 123, 130, 156, 164, 195, 205, 246, 260, 390, 410, 492, 533, 615, 780, 820, 1066, 1230, 1599, 2132, 2460, 2539, 2665, 3198, 5078, 5330, 6396, 7617, 7995, 10156, 10660, 12695, 15234, 15990, 25390, 30468, 31980, 33007, 38085, 50780, 66014, 76170, 99021, 104099, 132028, 152340, 165035, 198042, 208198, 312297, 330070, 396084, 416396, 495105, 520495, 624594, 660140, 990210, 1040990, 1249188, 1353287, 1561485, 1980420, 2081980, 2706574, 3122970, 4059861, 5413148, 6245940, 6766435, 8119722, 13532870, 16239444, 20299305, 27065740, 40598610, 81197220]

約数ペア:

[(1, 81197220), (2, 40598610), (3, 27065740), (4, 20299305), (5, 16239444), (6, 13532870), (10, 8119722), (12, 6766435), (13, 6245940), (15, 5413148), (20, 4059861), (26, 3122970), (30, 2706574), (39, 2081980), (41, 1980420), (52, 1561485), (60, 1353287), (65, 1249188), (78, 1040990), (82, 990210), (123, 660140), (130, 624594), (156, 520495), (164, 495105), (195, 416396), (205, 396084), (246, 330070), (260, 312297), (390, 208198), (410, 198042), (492, 165035), (533, 152340), (615, 132028), (780, 104099), (820, 99021), (1066, 76170), (1230, 66014), (1599, 50780), (2132, 38085), (2460, 33007), (2539, 31980), (2665, 30468), (3198, 25390), (5078, 15990), (5330, 15234), (6396, 12695), (7617, 10660), (7995, 10156)]