64865620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{809}}^1$

素因数の和:1048

約数の個数: 48

約数和(自身を含む): 144244800

約数和(自身を除く): 79379180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 211, 380, 422, 809, 844, 1055, 1618, 2110, 3236, 4009, 4045, 4220, 8018, 8090, 15371, 16036, 16180, 20045, 30742, 40090, 61484, 76855, 80180, 153710, 170699, 307420, 341398, 682796, 853495, 1706990, 3243281, 3413980, 6486562, 12973124, 16216405, 32432810, 64865620]

約数ペア:

[(1, 64865620), (2, 32432810), (4, 16216405), (5, 12973124), (10, 6486562), (19, 3413980), (20, 3243281), (38, 1706990), (76, 853495), (95, 682796), (190, 341398), (211, 307420), (380, 170699), (422, 153710), (809, 80180), (844, 76855), (1055, 61484), (1618, 40090), (2110, 30742), (3236, 20045), (4009, 16180), (4045, 16036), (4220, 15371), (8018, 8090)]