128971710

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{68239}}^1$

素因数の和:68262

約数の個数: 64

約数和(自身を含む): 393062400

約数和(自身を除く): 264090690

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 68239, 136478, 204717, 341195, 409434, 477673, 614151, 682390, 955346, 1023585, 1228302, 1433019, 1842453, 2047170, 2388365, 2866038, 3070755, 3684906, 4299057, 4776730, 6141510, 7165095, 8598114, 9212265, 12897171, 14330190, 18424530, 21495285, 25794342, 42990570, 64485855, 128971710]

約数ペア:

[(1, 128971710), (2, 64485855), (3, 42990570), (5, 25794342), (6, 21495285), (7, 18424530), (9, 14330190), (10, 12897171), (14, 9212265), (15, 8598114), (18, 7165095), (21, 6141510), (27, 4776730), (30, 4299057), (35, 3684906), (42, 3070755), (45, 2866038), (54, 2388365), (63, 2047170), (70, 1842453), (90, 1433019), (105, 1228302), (126, 1023585), (135, 955346), (189, 682390), (210, 614151), (270, 477673), (315, 409434), (378, 341195), (630, 204717), (945, 136478), (1890, 68239)]