18681000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{479}}^1$

素因数の和:516

約数の個数: 128

約数和(自身を含む): 62899200

約数和(自身を除く): 44218200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 25, 26, 30, 39, 40, 50, 52, 60, 65, 75, 78, 100, 104, 120, 125, 130, 150, 156, 195, 200, 250, 260, 300, 312, 325, 375, 390, 479, 500, 520, 600, 650, 750, 780, 958, 975, 1000, 1300, 1437, 1500, 1560, 1625, 1916, 1950, 2395, 2600, 2874, 3000, 3250, 3832, 3900, 4790, 4875, 5748, 6227, 6500, 7185, 7800, 9580, 9750, 11496, 11975, 12454, 13000, 14370, 18681, 19160, 19500, 23950, 24908, 28740, 31135, 35925, 37362, 39000, 47900, 49816, 57480, 59875, 62270, 71850, 74724, 93405, 95800, 119750, 124540, 143700, 149448, 155675, 179625, 186810, 239500, 249080, 287400, 311350, 359250, 373620, 467025, 479000, 622700, 718500, 747240, 778375, 934050, 1245400, 1437000, 1556750, 1868100, 2335125, 3113500, 3736200, 4670250, 6227000, 9340500, 18681000]

約数ペア:

[(1, 18681000), (2, 9340500), (3, 6227000), (4, 4670250), (5, 3736200), (6, 3113500), (8, 2335125), (10, 1868100), (12, 1556750), (13, 1437000), (15, 1245400), (20, 934050), (24, 778375), (25, 747240), (26, 718500), (30, 622700), (39, 479000), (40, 467025), (50, 373620), (52, 359250), (60, 311350), (65, 287400), (75, 249080), (78, 239500), (100, 186810), (104, 179625), (120, 155675), (125, 149448), (130, 143700), (150, 124540), (156, 119750), (195, 95800), (200, 93405), (250, 74724), (260, 71850), (300, 62270), (312, 59875), (325, 57480), (375, 49816), (390, 47900), (479, 39000), (500, 37362), (520, 35925), (600, 31135), (650, 28740), (750, 24908), (780, 23950), (958, 19500), (975, 19160), (1000, 18681), (1300, 14370), (1437, 13000), (1500, 12454), (1560, 11975), (1625, 11496), (1916, 9750), (1950, 9580), (2395, 7800), (2600, 7185), (2874, 6500), (3000, 6227), (3250, 5748), (3832, 4875), (3900, 4790)]