30406815

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 55351296

約数和(自身を除く): 24944481

約数列:

[1, 3, 5, 9, 15, 31, 45, 71, 93, 155, 213, 279, 307, 355, 465, 639, 921, 1065, 1395, 1535, 2201, 2763, 3195, 4605, 6603, 9517, 11005, 13815, 19809, 21797, 28551, 33015, 47585, 65391, 85653, 99045, 108985, 142755, 196173, 326955, 428265, 675707, 980865, 2027121, 3378535, 6081363, 10135605, 30406815]

約数ペア:

[(1, 30406815), (3, 10135605), (5, 6081363), (9, 3378535), (15, 2027121), (31, 980865), (45, 675707), (71, 428265), (93, 326955), (155, 196173), (213, 142755), (279, 108985), (307, 99045), (355, 85653), (465, 65391), (639, 47585), (921, 33015), (1065, 28551), (1395, 21797), (1535, 19809), (2201, 13815), (2763, 11005), (3195, 9517), (4605, 6603)]