28540330

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{397}}^1$

素因数の和:503

約数の個数: 64

約数和(自身を含む): 64189440

約数和(自身を除く): 35649110

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 79, 91, 130, 158, 182, 395, 397, 455, 553, 790, 794, 910, 1027, 1106, 1985, 2054, 2765, 2779, 3970, 5135, 5161, 5530, 5558, 7189, 10270, 10322, 13895, 14378, 25805, 27790, 31363, 35945, 36127, 51610, 62726, 71890, 72254, 156815, 180635, 219541, 313630, 361270, 407719, 439082, 815438, 1097705, 2038595, 2195410, 2854033, 4077190, 5708066, 14270165, 28540330]

約数ペア:

[(1, 28540330), (2, 14270165), (5, 5708066), (7, 4077190), (10, 2854033), (13, 2195410), (14, 2038595), (26, 1097705), (35, 815438), (65, 439082), (70, 407719), (79, 361270), (91, 313630), (130, 219541), (158, 180635), (182, 156815), (395, 72254), (397, 71890), (455, 62726), (553, 51610), (790, 36127), (794, 35945), (910, 31363), (1027, 27790), (1106, 25805), (1985, 14378), (2054, 13895), (2765, 10322), (2779, 10270), (3970, 7189), (5135, 5558), (5161, 5530)]