15381890

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:155

約数の個数: 48

約数和(自身を含む): 30101760

約数和(自身を除く): 14719870

約数列:

[1, 2, 5, 10, 29, 31, 58, 59, 62, 118, 145, 155, 290, 295, 310, 590, 841, 899, 1682, 1711, 1798, 1829, 3422, 3658, 4205, 4495, 8410, 8555, 8990, 9145, 17110, 18290, 26071, 49619, 52142, 53041, 99238, 106082, 130355, 248095, 260710, 265205, 496190, 530410, 1538189, 3076378, 7690945, 15381890]

約数ペア:

[(1, 15381890), (2, 7690945), (5, 3076378), (10, 1538189), (29, 530410), (31, 496190), (58, 265205), (59, 260710), (62, 248095), (118, 130355), (145, 106082), (155, 99238), (290, 53041), (295, 52142), (310, 49619), (590, 26071), (841, 18290), (899, 17110), (1682, 9145), (1711, 8990), (1798, 8555), (1829, 8410), (3422, 4495), (3658, 4205)]