221293360

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{331}}^1$

素因数の和:542

約数の個数: 80

約数和(自身を含む): 528350112

約数和(自身を除く): 307056752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 137, 244, 274, 305, 331, 488, 548, 610, 662, 685, 976, 1096, 1220, 1324, 1370, 1655, 2192, 2440, 2648, 2740, 3310, 4880, 5296, 5480, 6620, 8357, 10960, 13240, 16714, 20191, 26480, 33428, 40382, 41785, 45347, 66856, 80764, 83570, 90694, 100955, 133712, 161528, 167140, 181388, 201910, 226735, 323056, 334280, 362776, 403820, 453470, 668560, 725552, 807640, 906940, 1615280, 1813880, 2766167, 3627760, 5532334, 11064668, 13830835, 22129336, 27661670, 44258672, 55323340, 110646680, 221293360]

約数ペア:

[(1, 221293360), (2, 110646680), (4, 55323340), (5, 44258672), (8, 27661670), (10, 22129336), (16, 13830835), (20, 11064668), (40, 5532334), (61, 3627760), (80, 2766167), (122, 1813880), (137, 1615280), (244, 906940), (274, 807640), (305, 725552), (331, 668560), (488, 453470), (548, 403820), (610, 362776), (662, 334280), (685, 323056), (976, 226735), (1096, 201910), (1220, 181388), (1324, 167140), (1370, 161528), (1655, 133712), (2192, 100955), (2440, 90694), (2648, 83570), (2740, 80764), (3310, 66856), (4880, 45347), (5296, 41785), (5480, 40382), (6620, 33428), (8357, 26480), (10960, 20191), (13240, 16714)]