128658400

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:261

約数の個数: 144

約数和(自身を含む): 344509200

約数和(自身を除く): 215850800

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 89, 100, 104, 130, 139, 160, 178, 200, 208, 260, 278, 325, 356, 400, 416, 445, 520, 556, 650, 695, 712, 800, 890, 1040, 1112, 1157, 1300, 1390, 1424, 1780, 1807, 2080, 2224, 2225, 2314, 2600, 2780, 2848, 3475, 3560, 3614, 4448, 4450, 4628, 5200, 5560, 5785, 6950, 7120, 7228, 8900, 9035, 9256, 10400, 11120, 11570, 12371, 13900, 14240, 14456, 17800, 18070, 18512, 22240, 23140, 24742, 27800, 28912, 28925, 35600, 36140, 37024, 45175, 46280, 49484, 55600, 57824, 57850, 61855, 71200, 72280, 90350, 92560, 98968, 111200, 115700, 123710, 144560, 160823, 180700, 185120, 197936, 231400, 247420, 289120, 309275, 321646, 361400, 395872, 462800, 494840, 618550, 643292, 722800, 804115, 925600, 989680, 1237100, 1286584, 1445600, 1608230, 1979360, 2474200, 2573168, 3216460, 4020575, 4948400, 5146336, 6432920, 8041150, 9896800, 12865840, 16082300, 25731680, 32164600, 64329200, 128658400]

約数ペア:

[(1, 128658400), (2, 64329200), (4, 32164600), (5, 25731680), (8, 16082300), (10, 12865840), (13, 9896800), (16, 8041150), (20, 6432920), (25, 5146336), (26, 4948400), (32, 4020575), (40, 3216460), (50, 2573168), (52, 2474200), (65, 1979360), (80, 1608230), (89, 1445600), (100, 1286584), (104, 1237100), (130, 989680), (139, 925600), (160, 804115), (178, 722800), (200, 643292), (208, 618550), (260, 494840), (278, 462800), (325, 395872), (356, 361400), (400, 321646), (416, 309275), (445, 289120), (520, 247420), (556, 231400), (650, 197936), (695, 185120), (712, 180700), (800, 160823), (890, 144560), (1040, 123710), (1112, 115700), (1157, 111200), (1300, 98968), (1390, 92560), (1424, 90350), (1780, 72280), (1807, 71200), (2080, 61855), (2224, 57850), (2225, 57824), (2314, 55600), (2600, 49484), (2780, 46280), (2848, 45175), (3475, 37024), (3560, 36140), (3614, 35600), (4448, 28925), (4450, 28912), (4628, 27800), (5200, 24742), (5560, 23140), (5785, 22240), (6950, 18512), (7120, 18070), (7228, 17800), (8900, 14456), (9035, 14240), (9256, 13900), (10400, 12371), (11120, 11570)]