208567720

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{751}}^1$

素因数の和:946

約数の個数: 64

約数和(自身を含む): 482423040

約数和(自身を除く): 273855320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 131, 212, 262, 265, 424, 524, 530, 655, 751, 1048, 1060, 1310, 1502, 2120, 2620, 3004, 3755, 5240, 6008, 6943, 7510, 13886, 15020, 27772, 30040, 34715, 39803, 55544, 69430, 79606, 98381, 138860, 159212, 196762, 199015, 277720, 318424, 393524, 398030, 491905, 787048, 796060, 983810, 1592120, 1967620, 3935240, 5214193, 10428386, 20856772, 26070965, 41713544, 52141930, 104283860, 208567720]

約数ペア:

[(1, 208567720), (2, 104283860), (4, 52141930), (5, 41713544), (8, 26070965), (10, 20856772), (20, 10428386), (40, 5214193), (53, 3935240), (106, 1967620), (131, 1592120), (212, 983810), (262, 796060), (265, 787048), (424, 491905), (524, 398030), (530, 393524), (655, 318424), (751, 277720), (1048, 199015), (1060, 196762), (1310, 159212), (1502, 138860), (2120, 98381), (2620, 79606), (3004, 69430), (3755, 55544), (5240, 39803), (6008, 34715), (6943, 30040), (7510, 27772), (13886, 15020)]