19788128

素因数分解:

$2^5\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{223}}^1$

素因数の和:339

約数の個数: 48

約数和(自身を含む): 40642560

約数和(自身を除く): 20854432

約数列:

[1, 2, 4, 8, 16, 32, 47, 59, 94, 118, 188, 223, 236, 376, 446, 472, 752, 892, 944, 1504, 1784, 1888, 2773, 3568, 5546, 7136, 10481, 11092, 13157, 20962, 22184, 26314, 41924, 44368, 52628, 83848, 88736, 105256, 167696, 210512, 335392, 421024, 618379, 1236758, 2473516, 4947032, 9894064, 19788128]

約数ペア:

[(1, 19788128), (2, 9894064), (4, 4947032), (8, 2473516), (16, 1236758), (32, 618379), (47, 421024), (59, 335392), (94, 210512), (118, 167696), (188, 105256), (223, 88736), (236, 83848), (376, 52628), (446, 44368), (472, 41924), (752, 26314), (892, 22184), (944, 20962), (1504, 13157), (1784, 11092), (1888, 10481), (2773, 7136), (3568, 5546)]