2780349.00000000

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{557}}^1$

素因数の和:694

約数の個数: 64

約数和(自身を含む): 171752400

約数和(自身を除く): 98384360

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 89, 148, 178, 185, 296, 356, 370, 445, 557, 712, 740, 890, 1114, 1480, 1780, 2228, 2785, 3293, 3560, 4456, 5570, 6586, 11140, 13172, 16465, 20609, 22280, 26344, 32930, 41218, 49573, 65860, 82436, 99146, 103045, 131720, 164872, 198292, 206090, 247865, 396584, 412180, 495730, 824360, 991460, 1834201, 1982920, 3668402, 7336804, 9171005, 14673608, 18342010, 36684020, 73368040]

約数ペア:

[(1, 73368040), (2, 36684020), (4, 18342010), (5, 14673608), (8, 9171005), (10, 7336804), (20, 3668402), (37, 1982920), (40, 1834201), (74, 991460), (89, 824360), (148, 495730), (178, 412180), (185, 396584), (296, 247865), (356, 206090), (370, 198292), (445, 164872), (557, 131720), (712, 103045), (740, 99146), (890, 82436), (1114, 65860), (1480, 49573), (1780, 41218), (2228, 32930), (2785, 26344), (3293, 22280), (3560, 20609), (4456, 16465), (5570, 13172), (6586, 11140)]