90280000

素因数分解:

$2^6\times 5^4\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:130

約数の個数: 140

約数和(自身を含む): 233684572

約数和(自身を除く): 143404572

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 37, 40, 50, 61, 64, 74, 80, 100, 122, 125, 148, 160, 185, 200, 244, 250, 296, 305, 320, 370, 400, 488, 500, 592, 610, 625, 740, 800, 925, 976, 1000, 1184, 1220, 1250, 1480, 1525, 1600, 1850, 1952, 2000, 2257, 2368, 2440, 2500, 2960, 3050, 3700, 3904, 4000, 4514, 4625, 4880, 5000, 5920, 6100, 7400, 7625, 8000, 9028, 9250, 9760, 10000, 11285, 11840, 12200, 14800, 15250, 18056, 18500, 19520, 20000, 22570, 23125, 24400, 29600, 30500, 36112, 37000, 38125, 40000, 45140, 46250, 48800, 56425, 59200, 61000, 72224, 74000, 76250, 90280, 92500, 97600, 112850, 122000, 144448, 148000, 152500, 180560, 185000, 225700, 244000, 282125, 296000, 305000, 361120, 370000, 451400, 488000, 564250, 610000, 722240, 740000, 902800, 1128500, 1220000, 1410625, 1480000, 1805600, 2257000, 2440000, 2821250, 3611200, 4514000, 5642500, 9028000, 11285000, 18056000, 22570000, 45140000, 90280000]

約数ペア:

[(1, 90280000), (2, 45140000), (4, 22570000), (5, 18056000), (8, 11285000), (10, 9028000), (16, 5642500), (20, 4514000), (25, 3611200), (32, 2821250), (37, 2440000), (40, 2257000), (50, 1805600), (61, 1480000), (64, 1410625), (74, 1220000), (80, 1128500), (100, 902800), (122, 740000), (125, 722240), (148, 610000), (160, 564250), (185, 488000), (200, 451400), (244, 370000), (250, 361120), (296, 305000), (305, 296000), (320, 282125), (370, 244000), (400, 225700), (488, 185000), (500, 180560), (592, 152500), (610, 148000), (625, 144448), (740, 122000), (800, 112850), (925, 97600), (976, 92500), (1000, 90280), (1184, 76250), (1220, 74000), (1250, 72224), (1480, 61000), (1525, 59200), (1600, 56425), (1850, 48800), (1952, 46250), (2000, 45140), (2257, 40000), (2368, 38125), (2440, 37000), (2500, 36112), (2960, 30500), (3050, 29600), (3700, 24400), (3904, 23125), (4000, 22570), (4514, 20000), (4625, 19520), (4880, 18500), (5000, 18056), (5920, 15250), (6100, 14800), (7400, 12200), (7625, 11840), (8000, 11285), (9028, 10000), (9250, 9760)]