38788880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{151}}^1$

素因数の和:209

約数の個数: 120

約数和(自身を含む): 103475520

約数和(自身を除く): 64686640

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 151, 152, 169, 190, 208, 247, 260, 302, 304, 338, 380, 494, 520, 604, 676, 755, 760, 845, 988, 1040, 1208, 1235, 1352, 1510, 1520, 1690, 1963, 1976, 2416, 2470, 2704, 2869, 3020, 3211, 3380, 3926, 3952, 4940, 5738, 6040, 6422, 6760, 7852, 9815, 9880, 11476, 12080, 12844, 13520, 14345, 15704, 16055, 19630, 19760, 22952, 25519, 25688, 28690, 31408, 32110, 37297, 39260, 45904, 51038, 51376, 57380, 64220, 74594, 78520, 102076, 114760, 127595, 128440, 149188, 157040, 186485, 204152, 229520, 255190, 256880, 298376, 372970, 408304, 484861, 510380, 596752, 745940, 969722, 1020760, 1491880, 1939444, 2041520, 2424305, 2983760, 3878888, 4848610, 7757776, 9697220, 19394440, 38788880]

約数ペア:

[(1, 38788880), (2, 19394440), (4, 9697220), (5, 7757776), (8, 4848610), (10, 3878888), (13, 2983760), (16, 2424305), (19, 2041520), (20, 1939444), (26, 1491880), (38, 1020760), (40, 969722), (52, 745940), (65, 596752), (76, 510380), (80, 484861), (95, 408304), (104, 372970), (130, 298376), (151, 256880), (152, 255190), (169, 229520), (190, 204152), (208, 186485), (247, 157040), (260, 149188), (302, 128440), (304, 127595), (338, 114760), (380, 102076), (494, 78520), (520, 74594), (604, 64220), (676, 57380), (755, 51376), (760, 51038), (845, 45904), (988, 39260), (1040, 37297), (1208, 32110), (1235, 31408), (1352, 28690), (1510, 25688), (1520, 25519), (1690, 22952), (1963, 19760), (1976, 19630), (2416, 16055), (2470, 15704), (2704, 14345), (2869, 13520), (3020, 12844), (3211, 12080), (3380, 11476), (3926, 9880), (3952, 9815), (4940, 7852), (5738, 6760), (6040, 6422)]