89838380

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{1231}}^1$

素因数の和:1370

約数の個数: 48

約数和(自身を含む): 195592320

約数和(自身を除く): 105753940

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 89, 164, 178, 205, 356, 410, 445, 820, 890, 1231, 1780, 2462, 3649, 4924, 6155, 7298, 12310, 14596, 18245, 24620, 36490, 50471, 72980, 100942, 109559, 201884, 219118, 252355, 438236, 504710, 547795, 1009420, 1095590, 2191180, 4491919, 8983838, 17967676, 22459595, 44919190, 89838380]

約数ペア:

[(1, 89838380), (2, 44919190), (4, 22459595), (5, 17967676), (10, 8983838), (20, 4491919), (41, 2191180), (82, 1095590), (89, 1009420), (164, 547795), (178, 504710), (205, 438236), (356, 252355), (410, 219118), (445, 201884), (820, 109559), (890, 100942), (1231, 72980), (1780, 50471), (2462, 36490), (3649, 24620), (4924, 18245), (6155, 14596), (7298, 12310)]