312040040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31583}}^1$

素因数の和:31626

約数の個数: 64

約数和(自身を含む): 795916800

約数和(自身を除く): 483876760

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2470, 4940, 9880, 31583, 63166, 126332, 157915, 252664, 315830, 410579, 600077, 631660, 821158, 1200154, 1263320, 1642316, 2052895, 2400308, 3000385, 3284632, 4105790, 4800616, 6000770, 7801001, 8211580, 12001540, 15602002, 16423160, 24003080, 31204004, 39005005, 62408008, 78010010, 156020020, 312040040]

約数ペア:

[(1, 312040040), (2, 156020020), (4, 78010010), (5, 62408008), (8, 39005005), (10, 31204004), (13, 24003080), (19, 16423160), (20, 15602002), (26, 12001540), (38, 8211580), (40, 7801001), (52, 6000770), (65, 4800616), (76, 4105790), (95, 3284632), (104, 3000385), (130, 2400308), (152, 2052895), (190, 1642316), (247, 1263320), (260, 1200154), (380, 821158), (494, 631660), (520, 600077), (760, 410579), (988, 315830), (1235, 252664), (1976, 157915), (2470, 126332), (4940, 63166), (9880, 31583)]