28559090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{197}}^1$

素因数の和:339

約数の個数: 64

約数和(自身を含む): 62726400

約数和(自身を除く): 34167310

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 109, 133, 190, 197, 218, 266, 394, 545, 665, 763, 985, 1090, 1330, 1379, 1526, 1970, 2071, 2758, 3743, 3815, 4142, 6895, 7486, 7630, 10355, 13790, 14497, 18715, 20710, 21473, 26201, 28994, 37430, 42946, 52402, 72485, 107365, 131005, 144970, 150311, 214730, 262010, 300622, 407987, 751555, 815974, 1503110, 2039935, 2855909, 4079870, 5711818, 14279545, 28559090]

約数ペア:

[(1, 28559090), (2, 14279545), (5, 5711818), (7, 4079870), (10, 2855909), (14, 2039935), (19, 1503110), (35, 815974), (38, 751555), (70, 407987), (95, 300622), (109, 262010), (133, 214730), (190, 150311), (197, 144970), (218, 131005), (266, 107365), (394, 72485), (545, 52402), (665, 42946), (763, 37430), (985, 28994), (1090, 26201), (1330, 21473), (1379, 20710), (1526, 18715), (1970, 14497), (2071, 13790), (2758, 10355), (3743, 7630), (3815, 7486), (4142, 6895)]