400609880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{8353}}^1$

素因数の和:8484

約数の個数: 64

約数和(自身を含む): 992455200

約数和(自身を除く): 591845320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 109, 110, 218, 220, 436, 440, 545, 872, 1090, 1199, 2180, 2398, 4360, 4796, 5995, 8353, 9592, 11990, 16706, 23980, 33412, 41765, 47960, 66824, 83530, 91883, 167060, 183766, 334120, 367532, 459415, 735064, 910477, 918830, 1820954, 1837660, 3641908, 3675320, 4552385, 7283816, 9104770, 10015247, 18209540, 20030494, 36419080, 40060988, 50076235, 80121976, 100152470, 200304940, 400609880]

約数ペア:

[(1, 400609880), (2, 200304940), (4, 100152470), (5, 80121976), (8, 50076235), (10, 40060988), (11, 36419080), (20, 20030494), (22, 18209540), (40, 10015247), (44, 9104770), (55, 7283816), (88, 4552385), (109, 3675320), (110, 3641908), (218, 1837660), (220, 1820954), (436, 918830), (440, 910477), (545, 735064), (872, 459415), (1090, 367532), (1199, 334120), (2180, 183766), (2398, 167060), (4360, 91883), (4796, 83530), (5995, 66824), (8353, 47960), (9592, 41765), (11990, 33412), (16706, 23980)]