215036990

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{71}}^1\times {\mathrm{883}}^1$

素因数の和:982

約数の個数: 64

約数和(自身を含む): 458265600

約数和(自身を除く): 243228610

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 71, 98, 142, 245, 343, 355, 490, 497, 686, 710, 883, 994, 1715, 1766, 2485, 3430, 3479, 4415, 4970, 6181, 6958, 8830, 12362, 17395, 24353, 30905, 34790, 43267, 48706, 61810, 62693, 86534, 121765, 125386, 216335, 243530, 302869, 313465, 432670, 438851, 605738, 626930, 877702, 1514345, 2194255, 3028690, 3071957, 4388510, 6143914, 15359785, 21503699, 30719570, 43007398, 107518495, 215036990]

約数ペア:

[(1, 215036990), (2, 107518495), (5, 43007398), (7, 30719570), (10, 21503699), (14, 15359785), (35, 6143914), (49, 4388510), (70, 3071957), (71, 3028690), (98, 2194255), (142, 1514345), (245, 877702), (343, 626930), (355, 605738), (490, 438851), (497, 432670), (686, 313465), (710, 302869), (883, 243530), (994, 216335), (1715, 125386), (1766, 121765), (2485, 86534), (3430, 62693), (3479, 61810), (4415, 48706), (4970, 43267), (6181, 34790), (6958, 30905), (8830, 24353), (12362, 17395)]