388977988

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{4289}}^1$

素因数の和:4420

約数の個数: 48

約数和(自身を含む): 807206400

約数和(自身を除く): 418228412

約数列:

[1, 2, 4, 7, 14, 28, 41, 79, 82, 158, 164, 287, 316, 553, 574, 1106, 1148, 2212, 3239, 4289, 6478, 8578, 12956, 17156, 22673, 30023, 45346, 60046, 90692, 120092, 175849, 338831, 351698, 677662, 703396, 1230943, 1355324, 2371817, 2461886, 4743634, 4923772, 9487268, 13892071, 27784142, 55568284, 97244497, 194488994, 388977988]

約数ペア:

[(1, 388977988), (2, 194488994), (4, 97244497), (7, 55568284), (14, 27784142), (28, 13892071), (41, 9487268), (79, 4923772), (82, 4743634), (158, 2461886), (164, 2371817), (287, 1355324), (316, 1230943), (553, 703396), (574, 677662), (1106, 351698), (1148, 338831), (2212, 175849), (3239, 120092), (4289, 90692), (6478, 60046), (8578, 45346), (12956, 30023), (17156, 22673)]