66821580

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{293}}^1$

素因数の和:496

約数の個数: 144

約数和(自身を含む): 233722944

約数和(自身を除く): 166901364

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 181, 210, 252, 293, 315, 362, 420, 543, 586, 630, 724, 879, 905, 1086, 1172, 1260, 1267, 1465, 1629, 1758, 1810, 2051, 2172, 2534, 2637, 2715, 2930, 3258, 3516, 3620, 3801, 4102, 4395, 5068, 5274, 5430, 5860, 6153, 6335, 6516, 7602, 8145, 8204, 8790, 10255, 10548, 10860, 11403, 12306, 12670, 13185, 15204, 16290, 17580, 18459, 19005, 20510, 22806, 24612, 25340, 26370, 30765, 32580, 36918, 38010, 41020, 45612, 52740, 53033, 57015, 61530, 73836, 76020, 92295, 106066, 114030, 123060, 159099, 184590, 212132, 228060, 265165, 318198, 369180, 371231, 477297, 530330, 636396, 742462, 795495, 954594, 1060660, 1113693, 1484924, 1590990, 1856155, 1909188, 2227386, 2386485, 3181980, 3341079, 3712310, 4454772, 4772970, 5568465, 6682158, 7424620, 9545940, 11136930, 13364316, 16705395, 22273860, 33410790, 66821580]

約数ペア:

[(1, 66821580), (2, 33410790), (3, 22273860), (4, 16705395), (5, 13364316), (6, 11136930), (7, 9545940), (9, 7424620), (10, 6682158), (12, 5568465), (14, 4772970), (15, 4454772), (18, 3712310), (20, 3341079), (21, 3181980), (28, 2386485), (30, 2227386), (35, 1909188), (36, 1856155), (42, 1590990), (45, 1484924), (60, 1113693), (63, 1060660), (70, 954594), (84, 795495), (90, 742462), (105, 636396), (126, 530330), (140, 477297), (180, 371231), (181, 369180), (210, 318198), (252, 265165), (293, 228060), (315, 212132), (362, 184590), (420, 159099), (543, 123060), (586, 114030), (630, 106066), (724, 92295), (879, 76020), (905, 73836), (1086, 61530), (1172, 57015), (1260, 53033), (1267, 52740), (1465, 45612), (1629, 41020), (1758, 38010), (1810, 36918), (2051, 32580), (2172, 30765), (2534, 26370), (2637, 25340), (2715, 24612), (2930, 22806), (3258, 20510), (3516, 19005), (3620, 18459), (3801, 17580), (4102, 16290), (4395, 15204), (5068, 13185), (5274, 12670), (5430, 12306), (5860, 11403), (6153, 10860), (6335, 10548), (6516, 10255), (7602, 8790), (8145, 8204)]