19468570

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{359}}^1$

素因数の和:423

約数の個数: 64

約数和(自身を含む): 41990400

約数和(自身を除く): 22521830

約数列:

[1, 2, 5, 10, 11, 17, 22, 29, 34, 55, 58, 85, 110, 145, 170, 187, 290, 319, 359, 374, 493, 638, 718, 935, 986, 1595, 1795, 1870, 2465, 3190, 3590, 3949, 4930, 5423, 6103, 7898, 10411, 10846, 12206, 19745, 20822, 27115, 30515, 39490, 52055, 54230, 61030, 67133, 104110, 114521, 134266, 176987, 229042, 335665, 353974, 572605, 671330, 884935, 1145210, 1769870, 1946857, 3893714, 9734285, 19468570]

約数ペア:

[(1, 19468570), (2, 9734285), (5, 3893714), (10, 1946857), (11, 1769870), (17, 1145210), (22, 884935), (29, 671330), (34, 572605), (55, 353974), (58, 335665), (85, 229042), (110, 176987), (145, 134266), (170, 114521), (187, 104110), (290, 67133), (319, 61030), (359, 54230), (374, 52055), (493, 39490), (638, 30515), (718, 27115), (935, 20822), (986, 19745), (1595, 12206), (1795, 10846), (1870, 10411), (2465, 7898), (3190, 6103), (3590, 5423), (3949, 4930)]