12501620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{197}}^1$

素因数の和:392

約数の個数: 48

約数和(自身を含む): 27941760

約数和(自身を除く): 15440140

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 167, 190, 197, 334, 380, 394, 668, 788, 835, 985, 1670, 1970, 3173, 3340, 3743, 3940, 6346, 7486, 12692, 14972, 15865, 18715, 31730, 32899, 37430, 63460, 65798, 74860, 131596, 164495, 328990, 625081, 657980, 1250162, 2500324, 3125405, 6250810, 12501620]

約数ペア:

[(1, 12501620), (2, 6250810), (4, 3125405), (5, 2500324), (10, 1250162), (19, 657980), (20, 625081), (38, 328990), (76, 164495), (95, 131596), (167, 74860), (190, 65798), (197, 63460), (334, 37430), (380, 32899), (394, 31730), (668, 18715), (788, 15865), (835, 14972), (985, 12692), (1670, 7486), (1970, 6346), (3173, 3940), (3340, 3743)]