2011554860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{23063}}^1$

素因数の和:23175

約数の個数: 72

約数和(自身を含む): 4969369440

約数和(自身を除く): 2957814580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 89, 98, 140, 178, 196, 245, 356, 445, 490, 623, 890, 980, 1246, 1780, 2492, 3115, 4361, 6230, 8722, 12460, 17444, 21805, 23063, 43610, 46126, 87220, 92252, 115315, 161441, 230630, 322882, 461260, 645764, 807205, 1130087, 1614410, 2052607, 2260174, 3228820, 4105214, 4520348, 5650435, 8210428, 10263035, 11300870, 14368249, 20526070, 22601740, 28736498, 41052140, 57472996, 71841245, 100577743, 143682490, 201155486, 287364980, 402310972, 502888715, 1005777430, 2011554860]

約数ペア:

[(1, 2011554860), (2, 1005777430), (4, 502888715), (5, 402310972), (7, 287364980), (10, 201155486), (14, 143682490), (20, 100577743), (28, 71841245), (35, 57472996), (49, 41052140), (70, 28736498), (89, 22601740), (98, 20526070), (140, 14368249), (178, 11300870), (196, 10263035), (245, 8210428), (356, 5650435), (445, 4520348), (490, 4105214), (623, 3228820), (890, 2260174), (980, 2052607), (1246, 1614410), (1780, 1130087), (2492, 807205), (3115, 645764), (4361, 461260), (6230, 322882), (8722, 230630), (12460, 161441), (17444, 115315), (21805, 92252), (23063, 87220), (43610, 46126)]