18512000

素因数分解:

$2^7\times 5^3\times {\mathrm{13}}^1\times {\mathrm{89}}^1$

素因数の和:131

約数の個数: 128

約数和(自身を含む): 50122800

約数和(自身を除く): 31610800

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 89, 100, 104, 125, 128, 130, 160, 178, 200, 208, 250, 260, 320, 325, 356, 400, 416, 445, 500, 520, 640, 650, 712, 800, 832, 890, 1000, 1040, 1157, 1300, 1424, 1600, 1625, 1664, 1780, 2000, 2080, 2225, 2314, 2600, 2848, 3200, 3250, 3560, 4000, 4160, 4450, 4628, 5200, 5696, 5785, 6500, 7120, 8000, 8320, 8900, 9256, 10400, 11125, 11392, 11570, 13000, 14240, 16000, 17800, 18512, 20800, 22250, 23140, 26000, 28480, 28925, 35600, 37024, 41600, 44500, 46280, 52000, 56960, 57850, 71200, 74048, 89000, 92560, 104000, 115700, 142400, 144625, 148096, 178000, 185120, 208000, 231400, 284800, 289250, 356000, 370240, 462800, 578500, 712000, 740480, 925600, 1157000, 1424000, 1851200, 2314000, 3702400, 4628000, 9256000, 18512000]

約数ペア:

[(1, 18512000), (2, 9256000), (4, 4628000), (5, 3702400), (8, 2314000), (10, 1851200), (13, 1424000), (16, 1157000), (20, 925600), (25, 740480), (26, 712000), (32, 578500), (40, 462800), (50, 370240), (52, 356000), (64, 289250), (65, 284800), (80, 231400), (89, 208000), (100, 185120), (104, 178000), (125, 148096), (128, 144625), (130, 142400), (160, 115700), (178, 104000), (200, 92560), (208, 89000), (250, 74048), (260, 71200), (320, 57850), (325, 56960), (356, 52000), (400, 46280), (416, 44500), (445, 41600), (500, 37024), (520, 35600), (640, 28925), (650, 28480), (712, 26000), (800, 23140), (832, 22250), (890, 20800), (1000, 18512), (1040, 17800), (1157, 16000), (1300, 14240), (1424, 13000), (1600, 11570), (1625, 11392), (1664, 11125), (1780, 10400), (2000, 9256), (2080, 8900), (2225, 8320), (2314, 8000), (2600, 7120), (2848, 6500), (3200, 5785), (3250, 5696), (3560, 5200), (4000, 4628), (4160, 4450)]