201213380

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{1259}}^1$

素因数の和:1460

約数の個数: 48

約数和(自身を含む): 433097280

約数和(自身を除く): 231883900

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 131, 244, 262, 305, 524, 610, 655, 1220, 1259, 1310, 2518, 2620, 5036, 6295, 7991, 12590, 15982, 25180, 31964, 39955, 76799, 79910, 153598, 159820, 164929, 307196, 329858, 383995, 659716, 767990, 824645, 1535980, 1649290, 3298580, 10060669, 20121338, 40242676, 50303345, 100606690, 201213380]

約数ペア:

[(1, 201213380), (2, 100606690), (4, 50303345), (5, 40242676), (10, 20121338), (20, 10060669), (61, 3298580), (122, 1649290), (131, 1535980), (244, 824645), (262, 767990), (305, 659716), (524, 383995), (610, 329858), (655, 307196), (1220, 164929), (1259, 159820), (1310, 153598), (2518, 79910), (2620, 76799), (5036, 39955), (6295, 31964), (7991, 25180), (12590, 15982)]