28400800

素因数分解:

$2^5\times 5^2\times {\mathrm{131}}^1\times {\mathrm{271}}^1$

素因数の和:422

約数の個数: 72

約数和(自身を含む): 70120512

約数和(自身を除く): 41719712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 131, 160, 200, 262, 271, 400, 524, 542, 655, 800, 1048, 1084, 1310, 1355, 2096, 2168, 2620, 2710, 3275, 4192, 4336, 5240, 5420, 6550, 6775, 8672, 10480, 10840, 13100, 13550, 20960, 21680, 26200, 27100, 35501, 43360, 52400, 54200, 71002, 104800, 108400, 142004, 177505, 216800, 284008, 355010, 568016, 710020, 887525, 1136032, 1420040, 1775050, 2840080, 3550100, 5680160, 7100200, 14200400, 28400800]

約数ペア:

[(1, 28400800), (2, 14200400), (4, 7100200), (5, 5680160), (8, 3550100), (10, 2840080), (16, 1775050), (20, 1420040), (25, 1136032), (32, 887525), (40, 710020), (50, 568016), (80, 355010), (100, 284008), (131, 216800), (160, 177505), (200, 142004), (262, 108400), (271, 104800), (400, 71002), (524, 54200), (542, 52400), (655, 43360), (800, 35501), (1048, 27100), (1084, 26200), (1310, 21680), (1355, 20960), (2096, 13550), (2168, 13100), (2620, 10840), (2710, 10480), (3275, 8672), (4192, 6775), (4336, 6550), (5240, 5420)]