2005810000

素因数分解:

$2^4\times 5^4\times {\mathrm{79}}^1\times {\mathrm{2539}}^1$

素因数の和:2646

約数の個数: 100

約数和(自身を含む): 4919675200

約数和(自身を除く): 2913865200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 79, 80, 100, 125, 158, 200, 250, 316, 395, 400, 500, 625, 632, 790, 1000, 1250, 1264, 1580, 1975, 2000, 2500, 2539, 3160, 3950, 5000, 5078, 6320, 7900, 9875, 10000, 10156, 12695, 15800, 19750, 20312, 25390, 31600, 39500, 40624, 49375, 50780, 63475, 79000, 98750, 101560, 126950, 158000, 197500, 200581, 203120, 253900, 317375, 395000, 401162, 507800, 634750, 790000, 802324, 1002905, 1015600, 1269500, 1586875, 1604648, 2005810, 2539000, 3173750, 3209296, 4011620, 5014525, 5078000, 6347500, 8023240, 10029050, 12695000, 16046480, 20058100, 25072625, 25390000, 40116200, 50145250, 80232400, 100290500, 125363125, 200581000, 250726250, 401162000, 501452500, 1002905000, 2005810000]

約数ペア:

[(1, 2005810000), (2, 1002905000), (4, 501452500), (5, 401162000), (8, 250726250), (10, 200581000), (16, 125363125), (20, 100290500), (25, 80232400), (40, 50145250), (50, 40116200), (79, 25390000), (80, 25072625), (100, 20058100), (125, 16046480), (158, 12695000), (200, 10029050), (250, 8023240), (316, 6347500), (395, 5078000), (400, 5014525), (500, 4011620), (625, 3209296), (632, 3173750), (790, 2539000), (1000, 2005810), (1250, 1604648), (1264, 1586875), (1580, 1269500), (1975, 1015600), (2000, 1002905), (2500, 802324), (2539, 790000), (3160, 634750), (3950, 507800), (5000, 401162), (5078, 395000), (6320, 317375), (7900, 253900), (9875, 203120), (10000, 200581), (10156, 197500), (12695, 158000), (15800, 126950), (19750, 101560), (20312, 98750), (25390, 79000), (31600, 63475), (39500, 50780), (40624, 49375)]