30181620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{71861}}^1$

素因数の和:71880

約数の個数: 48

約数和(自身を含む): 96582528

約数和(自身を除く): 66400908

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 71861, 143722, 215583, 287444, 359305, 431166, 503027, 718610, 862332, 1006054, 1077915, 1437220, 1509081, 2012108, 2155830, 2515135, 3018162, 4311660, 5030270, 6036324, 7545405, 10060540, 15090810, 30181620]

約数ペア:

[(1, 30181620), (2, 15090810), (3, 10060540), (4, 7545405), (5, 6036324), (6, 5030270), (7, 4311660), (10, 3018162), (12, 2515135), (14, 2155830), (15, 2012108), (20, 1509081), (21, 1437220), (28, 1077915), (30, 1006054), (35, 862332), (42, 718610), (60, 503027), (70, 431166), (84, 359305), (105, 287444), (140, 215583), (210, 143722), (420, 71861)]