13265420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4987}}^1$

素因数の和:5022

約数の個数: 48

約数和(自身を含む): 33519360

約数和(自身を除く): 20253940

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 4987, 9974, 19948, 24935, 34909, 49870, 69818, 94753, 99740, 139636, 174545, 189506, 349090, 379012, 473765, 663271, 698180, 947530, 1326542, 1895060, 2653084, 3316355, 6632710, 13265420]

約数ペア:

[(1, 13265420), (2, 6632710), (4, 3316355), (5, 2653084), (7, 1895060), (10, 1326542), (14, 947530), (19, 698180), (20, 663271), (28, 473765), (35, 379012), (38, 349090), (70, 189506), (76, 174545), (95, 139636), (133, 99740), (140, 94753), (190, 69818), (266, 49870), (380, 34909), (532, 24935), (665, 19948), (1330, 9974), (2660, 4987)]