19864380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4663}}^1$

素因数の和:4746

約数の個数: 48

約数和(自身を含む): 56415744

約数和(自身を除く): 36551364

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 1065, 1420, 2130, 4260, 4663, 9326, 13989, 18652, 23315, 27978, 46630, 55956, 69945, 93260, 139890, 279780, 331073, 662146, 993219, 1324292, 1655365, 1986438, 3310730, 3972876, 4966095, 6621460, 9932190, 19864380]

約数ペア:

[(1, 19864380), (2, 9932190), (3, 6621460), (4, 4966095), (5, 3972876), (6, 3310730), (10, 1986438), (12, 1655365), (15, 1324292), (20, 993219), (30, 662146), (60, 331073), (71, 279780), (142, 139890), (213, 93260), (284, 69945), (355, 55956), (426, 46630), (710, 27978), (852, 23315), (1065, 18652), (1420, 13989), (2130, 9326), (4260, 4663)]