18793720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^3\times {\mathrm{353}}^1$

素因数の和:397

約数の個数: 64

約数和(自身を含む): 46643040

約数和(自身を除く): 27849320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 353, 440, 484, 605, 706, 968, 1210, 1331, 1412, 1765, 2420, 2662, 2824, 3530, 3883, 4840, 5324, 6655, 7060, 7766, 10648, 13310, 14120, 15532, 19415, 26620, 31064, 38830, 42713, 53240, 77660, 85426, 155320, 170852, 213565, 341704, 427130, 469843, 854260, 939686, 1708520, 1879372, 2349215, 3758744, 4698430, 9396860, 18793720]

約数ペア:

[(1, 18793720), (2, 9396860), (4, 4698430), (5, 3758744), (8, 2349215), (10, 1879372), (11, 1708520), (20, 939686), (22, 854260), (40, 469843), (44, 427130), (55, 341704), (88, 213565), (110, 170852), (121, 155320), (220, 85426), (242, 77660), (353, 53240), (440, 42713), (484, 38830), (605, 31064), (706, 26620), (968, 19415), (1210, 15532), (1331, 14120), (1412, 13310), (1765, 10648), (2420, 7766), (2662, 7060), (2824, 6655), (3530, 5324), (3883, 4840)]