64800500

素因数分解:

$2^2\times 5^3\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1$

素因数の和:198

約数の個数: 96

約数和(自身を含む): 151351200

約数和(自身を除く): 86550700

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 41, 50, 58, 82, 100, 109, 116, 125, 145, 164, 205, 218, 250, 290, 410, 436, 500, 545, 580, 725, 820, 1025, 1090, 1189, 1450, 2050, 2180, 2378, 2725, 2900, 3161, 3625, 4100, 4469, 4756, 5125, 5450, 5945, 6322, 7250, 8938, 10250, 10900, 11890, 12644, 13625, 14500, 15805, 17876, 20500, 22345, 23780, 27250, 29725, 31610, 44690, 54500, 59450, 63220, 79025, 89380, 111725, 118900, 129601, 148625, 158050, 223450, 259202, 297250, 316100, 395125, 446900, 518404, 558625, 594500, 648005, 790250, 1117250, 1296010, 1580500, 2234500, 2592020, 3240025, 6480050, 12960100, 16200125, 32400250, 64800500]

約数ペア:

[(1, 64800500), (2, 32400250), (4, 16200125), (5, 12960100), (10, 6480050), (20, 3240025), (25, 2592020), (29, 2234500), (41, 1580500), (50, 1296010), (58, 1117250), (82, 790250), (100, 648005), (109, 594500), (116, 558625), (125, 518404), (145, 446900), (164, 395125), (205, 316100), (218, 297250), (250, 259202), (290, 223450), (410, 158050), (436, 148625), (500, 129601), (545, 118900), (580, 111725), (725, 89380), (820, 79025), (1025, 63220), (1090, 59450), (1189, 54500), (1450, 44690), (2050, 31610), (2180, 29725), (2378, 27250), (2725, 23780), (2900, 22345), (3161, 20500), (3625, 17876), (4100, 15805), (4469, 14500), (4756, 13625), (5125, 12644), (5450, 11890), (5945, 10900), (6322, 10250), (7250, 8938)]