81872370

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1657}}^1$

素因数の和:1737

約数の個数: 80

約数和(自身を含む): 223889688

約数和(自身を除く): 142017318

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 61, 81, 90, 122, 135, 162, 183, 270, 305, 366, 405, 549, 610, 810, 915, 1098, 1647, 1657, 1830, 2745, 3294, 3314, 4941, 4971, 5490, 8235, 8285, 9882, 9942, 14913, 16470, 16570, 24705, 24855, 29826, 44739, 49410, 49710, 74565, 89478, 101077, 134217, 149130, 202154, 223695, 268434, 303231, 447390, 505385, 606462, 671085, 909693, 1010770, 1342170, 1516155, 1819386, 2729079, 3032310, 4548465, 5458158, 8187237, 9096930, 13645395, 16374474, 27290790, 40936185, 81872370]

約数ペア:

[(1, 81872370), (2, 40936185), (3, 27290790), (5, 16374474), (6, 13645395), (9, 9096930), (10, 8187237), (15, 5458158), (18, 4548465), (27, 3032310), (30, 2729079), (45, 1819386), (54, 1516155), (61, 1342170), (81, 1010770), (90, 909693), (122, 671085), (135, 606462), (162, 505385), (183, 447390), (270, 303231), (305, 268434), (366, 223695), (405, 202154), (549, 149130), (610, 134217), (810, 101077), (915, 89478), (1098, 74565), (1647, 49710), (1657, 49410), (1830, 44739), (2745, 29826), (3294, 24855), (3314, 24705), (4941, 16570), (4971, 16470), (5490, 14913), (8235, 9942), (8285, 9882)]