15721212390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{391367}}^1$

素因数の和:391493

約数の個数: 64

約数和(自身を含む): 41027890176

約数和(自身を除く): 25306677786

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 103, 130, 195, 206, 309, 390, 515, 618, 1030, 1339, 1545, 2678, 3090, 4017, 6695, 8034, 13390, 20085, 40170, 391367, 782734, 1174101, 1956835, 2348202, 3913670, 5087771, 5870505, 10175542, 11741010, 15263313, 25438855, 30526626, 40310801, 50877710, 76316565, 80621602, 120932403, 152633130, 201554005, 241864806, 403108010, 524040413, 604662015, 1048080826, 1209324030, 1572121239, 2620202065, 3144242478, 5240404130, 7860606195, 15721212390]

約数ペア:

[(1, 15721212390), (2, 7860606195), (3, 5240404130), (5, 3144242478), (6, 2620202065), (10, 1572121239), (13, 1209324030), (15, 1048080826), (26, 604662015), (30, 524040413), (39, 403108010), (65, 241864806), (78, 201554005), (103, 152633130), (130, 120932403), (195, 80621602), (206, 76316565), (309, 50877710), (390, 40310801), (515, 30526626), (618, 25438855), (1030, 15263313), (1339, 11741010), (1545, 10175542), (2678, 5870505), (3090, 5087771), (4017, 3913670), (6695, 2348202), (8034, 1956835), (13390, 1174101), (20085, 782734), (40170, 391367)]