20541000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{41}}^1\times {\mathrm{167}}^1$

素因数の和:232

約数の個数: 128

約数和(自身を含む): 66044160

約数和(自身を除く): 45503160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 41, 50, 60, 75, 82, 100, 120, 123, 125, 150, 164, 167, 200, 205, 246, 250, 300, 328, 334, 375, 410, 492, 500, 501, 600, 615, 668, 750, 820, 835, 984, 1000, 1002, 1025, 1230, 1336, 1500, 1640, 1670, 2004, 2050, 2460, 2505, 3000, 3075, 3340, 4008, 4100, 4175, 4920, 5010, 5125, 6150, 6680, 6847, 8200, 8350, 10020, 10250, 12300, 12525, 13694, 15375, 16700, 20040, 20500, 20541, 20875, 24600, 25050, 27388, 30750, 33400, 34235, 41000, 41082, 41750, 50100, 54776, 61500, 62625, 68470, 82164, 83500, 100200, 102705, 123000, 125250, 136940, 164328, 167000, 171175, 205410, 250500, 273880, 342350, 410820, 501000, 513525, 684700, 821640, 855875, 1027050, 1369400, 1711750, 2054100, 2567625, 3423500, 4108200, 5135250, 6847000, 10270500, 20541000]

約数ペア:

[(1, 20541000), (2, 10270500), (3, 6847000), (4, 5135250), (5, 4108200), (6, 3423500), (8, 2567625), (10, 2054100), (12, 1711750), (15, 1369400), (20, 1027050), (24, 855875), (25, 821640), (30, 684700), (40, 513525), (41, 501000), (50, 410820), (60, 342350), (75, 273880), (82, 250500), (100, 205410), (120, 171175), (123, 167000), (125, 164328), (150, 136940), (164, 125250), (167, 123000), (200, 102705), (205, 100200), (246, 83500), (250, 82164), (300, 68470), (328, 62625), (334, 61500), (375, 54776), (410, 50100), (492, 41750), (500, 41082), (501, 41000), (600, 34235), (615, 33400), (668, 30750), (750, 27388), (820, 25050), (835, 24600), (984, 20875), (1000, 20541), (1002, 20500), (1025, 20040), (1230, 16700), (1336, 15375), (1500, 13694), (1640, 12525), (1670, 12300), (2004, 10250), (2050, 10020), (2460, 8350), (2505, 8200), (3000, 6847), (3075, 6680), (3340, 6150), (4008, 5125), (4100, 5010), (4175, 4920)]