64983800

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{349}}^1$

素因数の和:398

約数の個数: 144

約数和(自身を含む): 185535000

約数和(自身を除く): 120551200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 25, 28, 35, 38, 40, 49, 50, 56, 70, 76, 95, 98, 100, 133, 140, 152, 175, 190, 196, 200, 245, 266, 280, 349, 350, 380, 392, 475, 490, 532, 665, 698, 700, 760, 931, 950, 980, 1064, 1225, 1330, 1396, 1400, 1745, 1862, 1900, 1960, 2443, 2450, 2660, 2792, 3325, 3490, 3724, 3800, 4655, 4886, 4900, 5320, 6631, 6650, 6980, 7448, 8725, 9310, 9772, 9800, 12215, 13262, 13300, 13960, 17101, 17450, 18620, 19544, 23275, 24430, 26524, 26600, 33155, 34202, 34900, 37240, 46417, 46550, 48860, 53048, 61075, 66310, 68404, 69800, 85505, 92834, 93100, 97720, 122150, 132620, 136808, 165775, 171010, 185668, 186200, 232085, 244300, 265240, 324919, 331550, 342020, 371336, 427525, 464170, 488600, 649838, 663100, 684040, 855050, 928340, 1160425, 1299676, 1326200, 1624595, 1710100, 1856680, 2320850, 2599352, 3249190, 3420200, 4641700, 6498380, 8122975, 9283400, 12996760, 16245950, 32491900, 64983800]

約数ペア:

[(1, 64983800), (2, 32491900), (4, 16245950), (5, 12996760), (7, 9283400), (8, 8122975), (10, 6498380), (14, 4641700), (19, 3420200), (20, 3249190), (25, 2599352), (28, 2320850), (35, 1856680), (38, 1710100), (40, 1624595), (49, 1326200), (50, 1299676), (56, 1160425), (70, 928340), (76, 855050), (95, 684040), (98, 663100), (100, 649838), (133, 488600), (140, 464170), (152, 427525), (175, 371336), (190, 342020), (196, 331550), (200, 324919), (245, 265240), (266, 244300), (280, 232085), (349, 186200), (350, 185668), (380, 171010), (392, 165775), (475, 136808), (490, 132620), (532, 122150), (665, 97720), (698, 93100), (700, 92834), (760, 85505), (931, 69800), (950, 68404), (980, 66310), (1064, 61075), (1225, 53048), (1330, 48860), (1396, 46550), (1400, 46417), (1745, 37240), (1862, 34900), (1900, 34202), (1960, 33155), (2443, 26600), (2450, 26524), (2660, 24430), (2792, 23275), (3325, 19544), (3490, 18620), (3724, 17450), (3800, 17101), (4655, 13960), (4886, 13300), (4900, 13262), (5320, 12215), (6631, 9800), (6650, 9772), (6980, 9310), (7448, 8725)]