381640280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{25717}}^1$

素因数の和:25788

約数の個数: 64

約数和(自身を含む): 999915840

約数和(自身を除く): 618275560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 53, 56, 70, 106, 140, 212, 265, 280, 371, 424, 530, 742, 1060, 1484, 1855, 2120, 2968, 3710, 7420, 14840, 25717, 51434, 102868, 128585, 180019, 205736, 257170, 360038, 514340, 720076, 900095, 1028680, 1363001, 1440152, 1800190, 2726002, 3600380, 5452004, 6815005, 7200760, 9541007, 10904008, 13630010, 19082014, 27260020, 38164028, 47705035, 54520040, 76328056, 95410070, 190820140, 381640280]

約数ペア:

[(1, 381640280), (2, 190820140), (4, 95410070), (5, 76328056), (7, 54520040), (8, 47705035), (10, 38164028), (14, 27260020), (20, 19082014), (28, 13630010), (35, 10904008), (40, 9541007), (53, 7200760), (56, 6815005), (70, 5452004), (106, 3600380), (140, 2726002), (212, 1800190), (265, 1440152), (280, 1363001), (371, 1028680), (424, 900095), (530, 720076), (742, 514340), (1060, 360038), (1484, 257170), (1855, 205736), (2120, 180019), (2968, 128585), (3710, 102868), (7420, 51434), (14840, 25717)]