129958520

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{727}}^1$

素因数の和:888

約数の個数: 64

約数和(自身を含む): 302702400

約数和(自身を除く): 172743880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 109, 164, 205, 218, 328, 410, 436, 545, 727, 820, 872, 1090, 1454, 1640, 2180, 2908, 3635, 4360, 4469, 5816, 7270, 8938, 14540, 17876, 22345, 29080, 29807, 35752, 44690, 59614, 79243, 89380, 119228, 149035, 158486, 178760, 238456, 298070, 316972, 396215, 596140, 633944, 792430, 1192280, 1584860, 3169720, 3248963, 6497926, 12995852, 16244815, 25991704, 32489630, 64979260, 129958520]

約数ペア:

[(1, 129958520), (2, 64979260), (4, 32489630), (5, 25991704), (8, 16244815), (10, 12995852), (20, 6497926), (40, 3248963), (41, 3169720), (82, 1584860), (109, 1192280), (164, 792430), (205, 633944), (218, 596140), (328, 396215), (410, 316972), (436, 298070), (545, 238456), (727, 178760), (820, 158486), (872, 149035), (1090, 119228), (1454, 89380), (1640, 79243), (2180, 59614), (2908, 44690), (3635, 35752), (4360, 29807), (4469, 29080), (5816, 22345), (7270, 17876), (8938, 14540)]