81495480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{577}}^1$

素因数の和:709

約数の個数: 128

約数和(自身を含む): 269671680

約数和(自身を除く): 188176200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 107, 110, 120, 132, 165, 214, 220, 264, 321, 330, 428, 440, 535, 577, 642, 660, 856, 1070, 1154, 1177, 1284, 1320, 1605, 1731, 2140, 2308, 2354, 2568, 2885, 3210, 3462, 3531, 4280, 4616, 4708, 5770, 5885, 6347, 6420, 6924, 7062, 8655, 9416, 11540, 11770, 12694, 12840, 13848, 14124, 17310, 17655, 19041, 23080, 23540, 25388, 28248, 31735, 34620, 35310, 38082, 47080, 50776, 61739, 63470, 69240, 70620, 76164, 95205, 123478, 126940, 141240, 152328, 185217, 190410, 246956, 253880, 308695, 370434, 380820, 493912, 617390, 679129, 740868, 761640, 926085, 1234780, 1358258, 1481736, 1852170, 2037387, 2469560, 2716516, 3395645, 3704340, 4074774, 5433032, 6791290, 7408680, 8149548, 10186935, 13582580, 16299096, 20373870, 27165160, 40747740, 81495480]

約数ペア:

[(1, 81495480), (2, 40747740), (3, 27165160), (4, 20373870), (5, 16299096), (6, 13582580), (8, 10186935), (10, 8149548), (11, 7408680), (12, 6791290), (15, 5433032), (20, 4074774), (22, 3704340), (24, 3395645), (30, 2716516), (33, 2469560), (40, 2037387), (44, 1852170), (55, 1481736), (60, 1358258), (66, 1234780), (88, 926085), (107, 761640), (110, 740868), (120, 679129), (132, 617390), (165, 493912), (214, 380820), (220, 370434), (264, 308695), (321, 253880), (330, 246956), (428, 190410), (440, 185217), (535, 152328), (577, 141240), (642, 126940), (660, 123478), (856, 95205), (1070, 76164), (1154, 70620), (1177, 69240), (1284, 63470), (1320, 61739), (1605, 50776), (1731, 47080), (2140, 38082), (2308, 35310), (2354, 34620), (2568, 31735), (2885, 28248), (3210, 25388), (3462, 23540), (3531, 23080), (4280, 19041), (4616, 17655), (4708, 17310), (5770, 14124), (5885, 13848), (6347, 12840), (6420, 12694), (6924, 11770), (7062, 11540), (8655, 9416)]