7785440

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1$

素因数の和:244

約数の個数: 96

約数和(自身を含む): 20956320

約数和(自身を除く): 13170880

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 32, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 160, 190, 197, 208, 247, 260, 304, 380, 394, 416, 494, 520, 608, 760, 788, 985, 988, 1040, 1235, 1520, 1576, 1970, 1976, 2080, 2470, 2561, 3040, 3152, 3743, 3940, 3952, 4940, 5122, 6304, 7486, 7880, 7904, 9880, 10244, 12805, 14972, 15760, 18715, 19760, 20488, 25610, 29944, 31520, 37430, 39520, 40976, 48659, 51220, 59888, 74860, 81952, 97318, 102440, 119776, 149720, 194636, 204880, 243295, 299440, 389272, 409760, 486590, 598880, 778544, 973180, 1557088, 1946360, 3892720, 7785440]

約数ペア:

[(1, 7785440), (2, 3892720), (4, 1946360), (5, 1557088), (8, 973180), (10, 778544), (13, 598880), (16, 486590), (19, 409760), (20, 389272), (26, 299440), (32, 243295), (38, 204880), (40, 194636), (52, 149720), (65, 119776), (76, 102440), (80, 97318), (95, 81952), (104, 74860), (130, 59888), (152, 51220), (160, 48659), (190, 40976), (197, 39520), (208, 37430), (247, 31520), (260, 29944), (304, 25610), (380, 20488), (394, 19760), (416, 18715), (494, 15760), (520, 14972), (608, 12805), (760, 10244), (788, 9880), (985, 7904), (988, 7880), (1040, 7486), (1235, 6304), (1520, 5122), (1576, 4940), (1970, 3952), (1976, 3940), (2080, 3743), (2470, 3152), (2561, 3040)]