138701900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1973}}^1$

素因数の和:2043

約数の個数: 72

約数和(自身を含む): 325552080

約数和(自身を除く): 186850180

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 37, 38, 50, 74, 76, 95, 100, 148, 185, 190, 370, 380, 475, 703, 740, 925, 950, 1406, 1850, 1900, 1973, 2812, 3515, 3700, 3946, 7030, 7892, 9865, 14060, 17575, 19730, 35150, 37487, 39460, 49325, 70300, 73001, 74974, 98650, 146002, 149948, 187435, 197300, 292004, 365005, 374870, 730010, 749740, 937175, 1387019, 1460020, 1825025, 1874350, 2774038, 3650050, 3748700, 5548076, 6935095, 7300100, 13870190, 27740380, 34675475, 69350950, 138701900]

約数ペア:

[(1, 138701900), (2, 69350950), (4, 34675475), (5, 27740380), (10, 13870190), (19, 7300100), (20, 6935095), (25, 5548076), (37, 3748700), (38, 3650050), (50, 2774038), (74, 1874350), (76, 1825025), (95, 1460020), (100, 1387019), (148, 937175), (185, 749740), (190, 730010), (370, 374870), (380, 365005), (475, 292004), (703, 197300), (740, 187435), (925, 149948), (950, 146002), (1406, 98650), (1850, 74974), (1900, 73001), (1973, 70300), (2812, 49325), (3515, 39460), (3700, 37487), (3946, 35150), (7030, 19730), (7892, 17575), (9865, 14060)]