81985860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{881}}^1$

素因数の和:954

約数の個数: 144

約数和(自身を含む): 277385472

約数和(自身を除く): 195399612

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 47, 55, 60, 66, 90, 94, 99, 110, 132, 141, 165, 180, 188, 198, 220, 235, 282, 330, 396, 423, 470, 495, 517, 564, 660, 705, 846, 881, 940, 990, 1034, 1410, 1551, 1692, 1762, 1980, 2068, 2115, 2585, 2643, 2820, 3102, 3524, 4230, 4405, 4653, 5170, 5286, 6204, 7755, 7929, 8460, 8810, 9306, 9691, 10340, 10572, 13215, 15510, 15858, 17620, 18612, 19382, 23265, 26430, 29073, 31020, 31716, 38764, 39645, 41407, 46530, 48455, 52860, 58146, 79290, 82814, 87219, 93060, 96910, 116292, 124221, 145365, 158580, 165628, 174438, 193820, 207035, 248442, 290730, 348876, 372663, 414070, 436095, 455477, 496884, 581460, 621105, 745326, 828140, 872190, 910954, 1242210, 1366431, 1490652, 1744380, 1821908, 1863315, 2277385, 2484420, 2732862, 3726630, 4099293, 4554770, 5465724, 6832155, 7453260, 8198586, 9109540, 13664310, 16397172, 20496465, 27328620, 40992930, 81985860]

約数ペア:

[(1, 81985860), (2, 40992930), (3, 27328620), (4, 20496465), (5, 16397172), (6, 13664310), (9, 9109540), (10, 8198586), (11, 7453260), (12, 6832155), (15, 5465724), (18, 4554770), (20, 4099293), (22, 3726630), (30, 2732862), (33, 2484420), (36, 2277385), (44, 1863315), (45, 1821908), (47, 1744380), (55, 1490652), (60, 1366431), (66, 1242210), (90, 910954), (94, 872190), (99, 828140), (110, 745326), (132, 621105), (141, 581460), (165, 496884), (180, 455477), (188, 436095), (198, 414070), (220, 372663), (235, 348876), (282, 290730), (330, 248442), (396, 207035), (423, 193820), (470, 174438), (495, 165628), (517, 158580), (564, 145365), (660, 124221), (705, 116292), (846, 96910), (881, 93060), (940, 87219), (990, 82814), (1034, 79290), (1410, 58146), (1551, 52860), (1692, 48455), (1762, 46530), (1980, 41407), (2068, 39645), (2115, 38764), (2585, 31716), (2643, 31020), (2820, 29073), (3102, 26430), (3524, 23265), (4230, 19382), (4405, 18612), (4653, 17620), (5170, 15858), (5286, 15510), (6204, 13215), (7755, 10572), (7929, 10340), (8460, 9691), (8810, 9306)]