81984424.000000000

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{58631}}^1$

素因数の和:58661

約数の個数: 96

約数和(自身を含む): 960392160

約数和(自身を除く): 685999080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 30, 36, 39, 40, 45, 52, 60, 65, 72, 78, 90, 104, 117, 120, 130, 156, 180, 195, 234, 260, 312, 360, 390, 468, 520, 585, 780, 936, 1170, 1560, 2340, 4680, 58631, 117262, 175893, 234524, 293155, 351786, 469048, 527679, 586310, 703572, 762203, 879465, 1055358, 1172620, 1407144, 1524406, 1758930, 2110716, 2286609, 2345240, 2638395, 3048812, 3517860, 3811015, 4221432, 4573218, 5276790, 6097624, 6859827, 7035720, 7622030, 9146436, 10553580, 11433045, 13719654, 15244060, 18292872, 21107160, 22866090, 27439308, 30488120, 34299135, 45732180, 54878616, 68598270, 91464360, 137196540, 274393080]

約数ペア:

[(1, 274393080), (2, 137196540), (3, 91464360), (4, 68598270), (5, 54878616), (6, 45732180), (8, 34299135), (9, 30488120), (10, 27439308), (12, 22866090), (13, 21107160), (15, 18292872), (18, 15244060), (20, 13719654), (24, 11433045), (26, 10553580), (30, 9146436), (36, 7622030), (39, 7035720), (40, 6859827), (45, 6097624), (52, 5276790), (60, 4573218), (65, 4221432), (72, 3811015), (78, 3517860), (90, 3048812), (104, 2638395), (117, 2345240), (120, 2286609), (130, 2110716), (156, 1758930), (180, 1524406), (195, 1407144), (234, 1172620), (260, 1055358), (312, 879465), (360, 762203), (390, 703572), (468, 586310), (520, 527679), (585, 469048), (780, 351786), (936, 293155), (1170, 234524), (1560, 175893), (2340, 117262), (4680, 58631)]