18831930

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{443}}^1$

素因数の和:575

約数の個数: 64

約数和(自身を含む): 49230720

約数和(自身を除く): 30398790

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 109, 130, 195, 218, 327, 390, 443, 545, 654, 886, 1090, 1329, 1417, 1635, 2215, 2658, 2834, 3270, 4251, 4430, 5759, 6645, 7085, 8502, 11518, 13290, 14170, 17277, 21255, 28795, 34554, 42510, 48287, 57590, 86385, 96574, 144861, 172770, 241435, 289722, 482870, 627731, 724305, 1255462, 1448610, 1883193, 3138655, 3766386, 6277310, 9415965, 18831930]

約数ペア:

[(1, 18831930), (2, 9415965), (3, 6277310), (5, 3766386), (6, 3138655), (10, 1883193), (13, 1448610), (15, 1255462), (26, 724305), (30, 627731), (39, 482870), (65, 289722), (78, 241435), (109, 172770), (130, 144861), (195, 96574), (218, 86385), (327, 57590), (390, 48287), (443, 42510), (545, 34554), (654, 28795), (886, 21255), (1090, 17277), (1329, 14170), (1417, 13290), (1635, 11518), (2215, 8502), (2658, 7085), (2834, 6645), (3270, 5759), (4251, 4430)]