39401440

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{997}}^1$

素因数の和:1044

約数の個数: 96

約数和(自身を含む): 105628320

約数和(自身を除く): 66226880

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, 208, 247, 260, 304, 380, 416, 494, 520, 608, 760, 988, 997, 1040, 1235, 1520, 1976, 1994, 2080, 2470, 3040, 3952, 3988, 4940, 4985, 7904, 7976, 9880, 9970, 12961, 15952, 18943, 19760, 19940, 25922, 31904, 37886, 39520, 39880, 51844, 64805, 75772, 79760, 94715, 103688, 129610, 151544, 159520, 189430, 207376, 246259, 259220, 303088, 378860, 414752, 492518, 518440, 606176, 757720, 985036, 1036880, 1231295, 1515440, 1970072, 2073760, 2462590, 3030880, 3940144, 4925180, 7880288, 9850360, 19700720, 39401440]

約数ペア:

[(1, 39401440), (2, 19700720), (4, 9850360), (5, 7880288), (8, 4925180), (10, 3940144), (13, 3030880), (16, 2462590), (19, 2073760), (20, 1970072), (26, 1515440), (32, 1231295), (38, 1036880), (40, 985036), (52, 757720), (65, 606176), (76, 518440), (80, 492518), (95, 414752), (104, 378860), (130, 303088), (152, 259220), (160, 246259), (190, 207376), (208, 189430), (247, 159520), (260, 151544), (304, 129610), (380, 103688), (416, 94715), (494, 79760), (520, 75772), (608, 64805), (760, 51844), (988, 39880), (997, 39520), (1040, 37886), (1235, 31904), (1520, 25922), (1976, 19940), (1994, 19760), (2080, 18943), (2470, 15952), (3040, 12961), (3952, 9970), (3988, 9880), (4940, 7976), (4985, 7904)]