28774018

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:251

約数の個数: 64

約数和(自身を含む): 57335040

約数和(自身を除く): 28561022

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 53, 91, 106, 133, 157, 182, 247, 266, 314, 371, 494, 689, 742, 1007, 1099, 1378, 1729, 2014, 2041, 2198, 2983, 3458, 4082, 4823, 5966, 7049, 8321, 9646, 13091, 14098, 14287, 16642, 20881, 26182, 28574, 38779, 41762, 58247, 77558, 91637, 108173, 116494, 158099, 183274, 216346, 271453, 316198, 542906, 757211, 1106693, 1514422, 2055287, 2213386, 4110574, 14387009, 28774018]

約数ペア:

[(1, 28774018), (2, 14387009), (7, 4110574), (13, 2213386), (14, 2055287), (19, 1514422), (26, 1106693), (38, 757211), (53, 542906), (91, 316198), (106, 271453), (133, 216346), (157, 183274), (182, 158099), (247, 116494), (266, 108173), (314, 91637), (371, 77558), (494, 58247), (689, 41762), (742, 38779), (1007, 28574), (1099, 26182), (1378, 20881), (1729, 16642), (2014, 14287), (2041, 14098), (2198, 13091), (2983, 9646), (3458, 8321), (4082, 7049), (4823, 5966)]