40147760

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{433}}^1$

素因数の和:526

約数の個数: 80

約数和(自身を含む): 100097760

約数和(自身を除く): 59950000

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 61, 76, 80, 95, 122, 152, 190, 244, 304, 305, 380, 433, 488, 610, 760, 866, 976, 1159, 1220, 1520, 1732, 2165, 2318, 2440, 3464, 4330, 4636, 4880, 5795, 6928, 8227, 8660, 9272, 11590, 16454, 17320, 18544, 23180, 26413, 32908, 34640, 41135, 46360, 52826, 65816, 82270, 92720, 105652, 131632, 132065, 164540, 211304, 264130, 329080, 422608, 501847, 528260, 658160, 1003694, 1056520, 2007388, 2113040, 2509235, 4014776, 5018470, 8029552, 10036940, 20073880, 40147760]

約数ペア:

[(1, 40147760), (2, 20073880), (4, 10036940), (5, 8029552), (8, 5018470), (10, 4014776), (16, 2509235), (19, 2113040), (20, 2007388), (38, 1056520), (40, 1003694), (61, 658160), (76, 528260), (80, 501847), (95, 422608), (122, 329080), (152, 264130), (190, 211304), (244, 164540), (304, 132065), (305, 131632), (380, 105652), (433, 92720), (488, 82270), (610, 65816), (760, 52826), (866, 46360), (976, 41135), (1159, 34640), (1220, 32908), (1520, 26413), (1732, 23180), (2165, 18544), (2318, 17320), (2440, 16454), (3464, 11590), (4330, 9272), (4636, 8660), (4880, 8227), (5795, 6928)]