87811340

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1\times {\mathrm{619}}^1$

素因数の和:842

約数の個数: 48

約数和(自身を含む): 190300320

約数和(自身を除く): 102488980

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 173, 205, 346, 410, 619, 692, 820, 865, 1238, 1730, 2476, 3095, 3460, 6190, 7093, 12380, 14186, 25379, 28372, 35465, 50758, 70930, 101516, 107087, 126895, 141860, 214174, 253790, 428348, 507580, 535435, 1070870, 2141740, 4390567, 8781134, 17562268, 21952835, 43905670, 87811340]

約数ペア:

[(1, 87811340), (2, 43905670), (4, 21952835), (5, 17562268), (10, 8781134), (20, 4390567), (41, 2141740), (82, 1070870), (164, 535435), (173, 507580), (205, 428348), (346, 253790), (410, 214174), (619, 141860), (692, 126895), (820, 107087), (865, 101516), (1238, 70930), (1730, 50758), (2476, 35465), (3095, 28372), (3460, 25379), (6190, 14186), (7093, 12380)]