245877980

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{179}}^1\times {\mathrm{397}}^1$

素因数の和:758

約数の個数: 48

約数和(自身を含む): 523545120

約数和(自身を除く): 277667140

約数列:

[1, 2, 4, 5, 10, 20, 173, 179, 346, 358, 397, 692, 716, 794, 865, 895, 1588, 1730, 1790, 1985, 3460, 3580, 3970, 7940, 30967, 61934, 68681, 71063, 123868, 137362, 142126, 154835, 274724, 284252, 309670, 343405, 355315, 619340, 686810, 710630, 1373620, 1421260, 12293899, 24587798, 49175596, 61469495, 122938990, 245877980]

約数ペア:

[(1, 245877980), (2, 122938990), (4, 61469495), (5, 49175596), (10, 24587798), (20, 12293899), (173, 1421260), (179, 1373620), (346, 710630), (358, 686810), (397, 619340), (692, 355315), (716, 343405), (794, 309670), (865, 284252), (895, 274724), (1588, 154835), (1730, 142126), (1790, 137362), (1985, 123868), (3460, 71063), (3580, 68681), (3970, 61934), (7940, 30967)]