19811130

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{71}}^2\times {\mathrm{131}}^1$

素因数の和:283

約数の個数: 48

約数和(自身を含む): 48593952

約数和(自身を除く): 28782822

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 71, 131, 142, 213, 262, 355, 393, 426, 655, 710, 786, 1065, 1310, 1965, 2130, 3930, 5041, 9301, 10082, 15123, 18602, 25205, 27903, 30246, 46505, 50410, 55806, 75615, 93010, 139515, 151230, 279030, 660371, 1320742, 1981113, 3301855, 3962226, 6603710, 9905565, 19811130]

約数ペア:

[(1, 19811130), (2, 9905565), (3, 6603710), (5, 3962226), (6, 3301855), (10, 1981113), (15, 1320742), (30, 660371), (71, 279030), (131, 151230), (142, 139515), (213, 93010), (262, 75615), (355, 55806), (393, 50410), (426, 46505), (655, 30246), (710, 27903), (786, 25205), (1065, 18602), (1310, 15123), (1965, 10082), (2130, 9301), (3930, 5041)]