64753900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{197}}^1$

素因数の和:403

約数の個数: 72

約数和(自身を含む): 149521680

約数和(自身を除く): 84767780

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 173, 190, 197, 346, 380, 394, 475, 692, 788, 865, 950, 985, 1730, 1900, 1970, 3287, 3460, 3743, 3940, 4325, 4925, 6574, 7486, 8650, 9850, 13148, 14972, 16435, 17300, 18715, 19700, 32870, 34081, 37430, 65740, 68162, 74860, 82175, 93575, 136324, 164350, 170405, 187150, 328700, 340810, 374300, 647539, 681620, 852025, 1295078, 1704050, 2590156, 3237695, 3408100, 6475390, 12950780, 16188475, 32376950, 64753900]

約数ペア:

[(1, 64753900), (2, 32376950), (4, 16188475), (5, 12950780), (10, 6475390), (19, 3408100), (20, 3237695), (25, 2590156), (38, 1704050), (50, 1295078), (76, 852025), (95, 681620), (100, 647539), (173, 374300), (190, 340810), (197, 328700), (346, 187150), (380, 170405), (394, 164350), (475, 136324), (692, 93575), (788, 82175), (865, 74860), (950, 68162), (985, 65740), (1730, 37430), (1900, 34081), (1970, 32870), (3287, 19700), (3460, 18715), (3743, 17300), (3940, 16435), (4325, 14972), (4925, 13148), (6574, 9850), (7486, 8650)]