4278040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{433}}^1$

素因数の和:476

約数の個数: 64

約数和(自身を含む): 10936800

約数和(自身を除く): 6658760

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, 433, 494, 520, 760, 866, 988, 1235, 1732, 1976, 2165, 2470, 3464, 4330, 4940, 5629, 8227, 8660, 9880, 11258, 16454, 17320, 22516, 28145, 32908, 41135, 45032, 56290, 65816, 82270, 106951, 112580, 164540, 213902, 225160, 329080, 427804, 534755, 855608, 1069510, 2139020, 4278040]

約数ペア:

[(1, 4278040), (2, 2139020), (4, 1069510), (5, 855608), (8, 534755), (10, 427804), (13, 329080), (19, 225160), (20, 213902), (26, 164540), (38, 112580), (40, 106951), (52, 82270), (65, 65816), (76, 56290), (95, 45032), (104, 41135), (130, 32908), (152, 28145), (190, 22516), (247, 17320), (260, 16454), (380, 11258), (433, 9880), (494, 8660), (520, 8227), (760, 5629), (866, 4940), (988, 4330), (1235, 3464), (1732, 2470), (1976, 2165)]