66818725

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:190

約数の個数: 48

約数和(自身を含む): 92494080

約数和(自身を除く): 25675355

約数列:

[1, 5, 19, 25, 41, 47, 73, 95, 205, 235, 365, 475, 779, 893, 1025, 1175, 1387, 1825, 1927, 2993, 3431, 3895, 4465, 6935, 9635, 14965, 17155, 19475, 22325, 34675, 36613, 48175, 56867, 65189, 74825, 85775, 140671, 183065, 284335, 325945, 703355, 915325, 1421675, 1629725, 2672749, 3516775, 13363745, 66818725]

約数ペア:

[(1, 66818725), (5, 13363745), (19, 3516775), (25, 2672749), (41, 1629725), (47, 1421675), (73, 915325), (95, 703355), (205, 325945), (235, 284335), (365, 183065), (475, 140671), (779, 85775), (893, 74825), (1025, 65189), (1175, 56867), (1387, 48175), (1825, 36613), (1927, 34675), (2993, 22325), (3431, 19475), (3895, 17155), (4465, 14965), (6935, 9635)]