91045000

素因数分解:

$2^3\times 5^4\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:296

約数の個数: 80

約数和(自身を含む): 216493200

約数和(自身を除く): 125448200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 131, 139, 200, 250, 262, 278, 500, 524, 556, 625, 655, 695, 1000, 1048, 1112, 1250, 1310, 1390, 2500, 2620, 2780, 3275, 3475, 5000, 5240, 5560, 6550, 6950, 13100, 13900, 16375, 17375, 18209, 26200, 27800, 32750, 34750, 36418, 65500, 69500, 72836, 81875, 86875, 91045, 131000, 139000, 145672, 163750, 173750, 182090, 327500, 347500, 364180, 455225, 655000, 695000, 728360, 910450, 1820900, 2276125, 3641800, 4552250, 9104500, 11380625, 18209000, 22761250, 45522500, 91045000]

約数ペア:

[(1, 91045000), (2, 45522500), (4, 22761250), (5, 18209000), (8, 11380625), (10, 9104500), (20, 4552250), (25, 3641800), (40, 2276125), (50, 1820900), (100, 910450), (125, 728360), (131, 695000), (139, 655000), (200, 455225), (250, 364180), (262, 347500), (278, 327500), (500, 182090), (524, 173750), (556, 163750), (625, 145672), (655, 139000), (695, 131000), (1000, 91045), (1048, 86875), (1112, 81875), (1250, 72836), (1310, 69500), (1390, 65500), (2500, 36418), (2620, 34750), (2780, 32750), (3275, 27800), (3475, 26200), (5000, 18209), (5240, 17375), (5560, 16375), (6550, 13900), (6950, 13100)]