27969950

素因数分解:

$2^1\times 5^2\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:261

約数の個数: 48

約数和(自身を含む): 53954880

約数和(自身を除く): 25984930

約数列:

[1, 2, 5, 10, 25, 50, 73, 79, 97, 146, 158, 194, 365, 395, 485, 730, 790, 970, 1825, 1975, 2425, 3650, 3950, 4850, 5767, 7081, 7663, 11534, 14162, 15326, 28835, 35405, 38315, 57670, 70810, 76630, 144175, 177025, 191575, 288350, 354050, 383150, 559399, 1118798, 2796995, 5593990, 13984975, 27969950]

約数ペア:

[(1, 27969950), (2, 13984975), (5, 5593990), (10, 2796995), (25, 1118798), (50, 559399), (73, 383150), (79, 354050), (97, 288350), (146, 191575), (158, 177025), (194, 144175), (365, 76630), (395, 70810), (485, 57670), (730, 38315), (790, 35405), (970, 28835), (1825, 15326), (1975, 14162), (2425, 11534), (3650, 7663), (3950, 7081), (4850, 5767)]