1813309970

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{401}}^1\times {\mathrm{503}}^1$

素因数の和:971

約数の個数: 64

約数和(自身を含む): 3501066240

約数和(自身を除く): 1687756270

約数列:

[1, 2, 5, 10, 29, 31, 58, 62, 145, 155, 290, 310, 401, 503, 802, 899, 1006, 1798, 2005, 2515, 4010, 4495, 5030, 8990, 11629, 12431, 14587, 15593, 23258, 24862, 29174, 31186, 58145, 62155, 72935, 77965, 116290, 124310, 145870, 155930, 201703, 360499, 403406, 452197, 720998, 904394, 1008515, 1802495, 2017030, 2260985, 3604990, 4521970, 5849387, 6252793, 11698774, 12505586, 29246935, 31263965, 58493870, 62527930, 181330997, 362661994, 906654985, 1813309970]

約数ペア:

[(1, 1813309970), (2, 906654985), (5, 362661994), (10, 181330997), (29, 62527930), (31, 58493870), (58, 31263965), (62, 29246935), (145, 12505586), (155, 11698774), (290, 6252793), (310, 5849387), (401, 4521970), (503, 3604990), (802, 2260985), (899, 2017030), (1006, 1802495), (1798, 1008515), (2005, 904394), (2515, 720998), (4010, 452197), (4495, 403406), (5030, 360499), (8990, 201703), (11629, 155930), (12431, 145870), (14587, 124310), (15593, 116290), (23258, 77965), (24862, 72935), (29174, 62155), (31186, 58145)]