81185520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{26021}}^1$

素因数の和:26050

約数の個数: 80

約数和(自身を含む): 271045152

約数和(自身を除く): 189859632

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 26021, 52042, 78063, 104084, 130105, 156126, 208168, 260210, 312252, 338273, 390315, 416336, 520420, 624504, 676546, 780630, 1014819, 1040840, 1249008, 1353092, 1561260, 1691365, 2029638, 2081680, 2706184, 3122520, 3382730, 4059276, 5074095, 5412368, 6245040, 6765460, 8118552, 10148190, 13530920, 16237104, 20296380, 27061840, 40592760, 81185520]

約数ペア:

[(1, 81185520), (2, 40592760), (3, 27061840), (4, 20296380), (5, 16237104), (6, 13530920), (8, 10148190), (10, 8118552), (12, 6765460), (13, 6245040), (15, 5412368), (16, 5074095), (20, 4059276), (24, 3382730), (26, 3122520), (30, 2706184), (39, 2081680), (40, 2029638), (48, 1691365), (52, 1561260), (60, 1353092), (65, 1249008), (78, 1040840), (80, 1014819), (104, 780630), (120, 676546), (130, 624504), (156, 520420), (195, 416336), (208, 390315), (240, 338273), (260, 312252), (312, 260210), (390, 208168), (520, 156126), (624, 130105), (780, 104084), (1040, 78063), (1560, 52042), (3120, 26021)]