28997420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{557}}^1$

素因数の和:722

約数の個数: 48

約数和(自身を含む): 64683360

約数和(自身を除く): 35685940

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 137, 190, 274, 380, 548, 557, 685, 1114, 1370, 2228, 2603, 2740, 2785, 5206, 5570, 10412, 10583, 11140, 13015, 21166, 26030, 42332, 52060, 52915, 76309, 105830, 152618, 211660, 305236, 381545, 763090, 1449871, 1526180, 2899742, 5799484, 7249355, 14498710, 28997420]

約数ペア:

[(1, 28997420), (2, 14498710), (4, 7249355), (5, 5799484), (10, 2899742), (19, 1526180), (20, 1449871), (38, 763090), (76, 381545), (95, 305236), (137, 211660), (190, 152618), (274, 105830), (380, 76309), (548, 52915), (557, 52060), (685, 42332), (1114, 26030), (1370, 21166), (2228, 13015), (2603, 11140), (2740, 10583), (2785, 10412), (5206, 5570)]