25000540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{139}}^1$

素因数の和:211

約数の個数: 72

約数和(自身を含む): 58529520

約数和(自身を除く): 33528980

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 68, 85, 92, 115, 139, 170, 230, 278, 340, 391, 460, 529, 556, 695, 782, 1058, 1390, 1564, 1955, 2116, 2363, 2645, 2780, 3197, 3910, 4726, 5290, 6394, 7820, 8993, 9452, 10580, 11815, 12788, 15985, 17986, 23630, 31970, 35972, 44965, 47260, 54349, 63940, 73531, 89930, 108698, 147062, 179860, 217396, 271745, 294124, 367655, 543490, 735310, 1086980, 1250027, 1470620, 2500054, 5000108, 6250135, 12500270, 25000540]

約数ペア:

[(1, 25000540), (2, 12500270), (4, 6250135), (5, 5000108), (10, 2500054), (17, 1470620), (20, 1250027), (23, 1086980), (34, 735310), (46, 543490), (68, 367655), (85, 294124), (92, 271745), (115, 217396), (139, 179860), (170, 147062), (230, 108698), (278, 89930), (340, 73531), (391, 63940), (460, 54349), (529, 47260), (556, 44965), (695, 35972), (782, 31970), (1058, 23630), (1390, 17986), (1564, 15985), (1955, 12788), (2116, 11815), (2363, 10580), (2645, 9452), (2780, 8993), (3197, 7820), (3910, 6394), (4726, 5290)]