388491318

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{16981}}^1$

素因数の和:17061

約数の個数: 48

約数和(自身を含む): 890128512

約数和(自身を除く): 501637194

約数列:

[1, 2, 3, 6, 9, 18, 31, 41, 62, 82, 93, 123, 186, 246, 279, 369, 558, 738, 1271, 2542, 3813, 7626, 11439, 16981, 22878, 33962, 50943, 101886, 152829, 305658, 526411, 696221, 1052822, 1392442, 1579233, 2088663, 3158466, 4177326, 4737699, 6265989, 9475398, 12531978, 21582851, 43165702, 64748553, 129497106, 194245659, 388491318]

約数ペア:

[(1, 388491318), (2, 194245659), (3, 129497106), (6, 64748553), (9, 43165702), (18, 21582851), (31, 12531978), (41, 9475398), (62, 6265989), (82, 4737699), (93, 4177326), (123, 3158466), (186, 2088663), (246, 1579233), (279, 1392442), (369, 1052822), (558, 696221), (738, 526411), (1271, 305658), (2542, 152829), (3813, 101886), (7626, 50943), (11439, 33962), (16981, 22878)]