656891880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1\times {\mathrm{653}}^1$

素因数の和:851

約数の個数: 128

約数和(自身を含む): 2017249920

約数和(自身を除く): 1360358040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 83, 101, 120, 166, 202, 249, 303, 332, 404, 415, 498, 505, 606, 653, 664, 808, 830, 996, 1010, 1212, 1245, 1306, 1515, 1660, 1959, 1992, 2020, 2424, 2490, 2612, 3030, 3265, 3320, 3918, 4040, 4980, 5224, 6060, 6530, 7836, 8383, 9795, 9960, 12120, 13060, 15672, 16766, 19590, 25149, 26120, 33532, 39180, 41915, 50298, 54199, 65953, 67064, 78360, 83830, 100596, 108398, 125745, 131906, 162597, 167660, 197859, 201192, 216796, 251490, 263812, 270995, 325194, 329765, 335320, 395718, 433592, 502980, 527624, 541990, 650388, 659530, 791436, 812985, 989295, 1005960, 1083980, 1300776, 1319060, 1582872, 1625970, 1978590, 2167960, 2638120, 3251940, 3957180, 5474099, 6503880, 7914360, 10948198, 16422297, 21896396, 27370495, 32844594, 43792792, 54740990, 65689188, 82111485, 109481980, 131378376, 164222970, 218963960, 328445940, 656891880]

約数ペア:

[(1, 656891880), (2, 328445940), (3, 218963960), (4, 164222970), (5, 131378376), (6, 109481980), (8, 82111485), (10, 65689188), (12, 54740990), (15, 43792792), (20, 32844594), (24, 27370495), (30, 21896396), (40, 16422297), (60, 10948198), (83, 7914360), (101, 6503880), (120, 5474099), (166, 3957180), (202, 3251940), (249, 2638120), (303, 2167960), (332, 1978590), (404, 1625970), (415, 1582872), (498, 1319060), (505, 1300776), (606, 1083980), (653, 1005960), (664, 989295), (808, 812985), (830, 791436), (996, 659530), (1010, 650388), (1212, 541990), (1245, 527624), (1306, 502980), (1515, 433592), (1660, 395718), (1959, 335320), (1992, 329765), (2020, 325194), (2424, 270995), (2490, 263812), (2612, 251490), (3030, 216796), (3265, 201192), (3320, 197859), (3918, 167660), (4040, 162597), (4980, 131906), (5224, 125745), (6060, 108398), (6530, 100596), (7836, 83830), (8383, 78360), (9795, 67064), (9960, 65953), (12120, 54199), (13060, 50298), (15672, 41915), (16766, 39180), (19590, 33532), (25149, 26120)]