81461730

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{387913}}^1$

素因数の和:387930

約数の個数: 32

約数和(自身を含む): 223438464

約数和(自身を除く): 141976734

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 387913, 775826, 1163739, 1939565, 2327478, 2715391, 3879130, 5430782, 5818695, 8146173, 11637390, 13576955, 16292346, 27153910, 40730865, 81461730]

約数ペア:

[(1, 81461730), (2, 40730865), (3, 27153910), (5, 16292346), (6, 13576955), (7, 11637390), (10, 8146173), (14, 5818695), (15, 5430782), (21, 3879130), (30, 2715391), (35, 2327478), (42, 1939565), (70, 1163739), (105, 775826), (210, 387913)]