19319450

素因数分解:

$2^1\times 5^2\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:231

約数の個数: 48

約数和(自身を含む): 37438080

約数和(自身を除く): 18118630

約数列:

[1, 2, 5, 10, 25, 50, 67, 73, 79, 134, 146, 158, 335, 365, 395, 670, 730, 790, 1675, 1825, 1975, 3350, 3650, 3950, 4891, 5293, 5767, 9782, 10586, 11534, 24455, 26465, 28835, 48910, 52930, 57670, 122275, 132325, 144175, 244550, 264650, 288350, 386389, 772778, 1931945, 3863890, 9659725, 19319450]

約数ペア:

[(1, 19319450), (2, 9659725), (5, 3863890), (10, 1931945), (25, 772778), (50, 386389), (67, 288350), (73, 264650), (79, 244550), (134, 144175), (146, 132325), (158, 122275), (335, 57670), (365, 52930), (395, 48910), (670, 28835), (730, 26465), (790, 24455), (1675, 11534), (1825, 10586), (1975, 9782), (3350, 5767), (3650, 5293), (3950, 4891)]