19205240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{463}}^1$

素因数の和:552

約数の個数: 64

約数和(自身を含む): 46604160

約数和(自身を除く): 27398920

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 61, 68, 85, 122, 136, 170, 244, 305, 340, 463, 488, 610, 680, 926, 1037, 1220, 1852, 2074, 2315, 2440, 3704, 4148, 4630, 5185, 7871, 8296, 9260, 10370, 15742, 18520, 20740, 28243, 31484, 39355, 41480, 56486, 62968, 78710, 112972, 141215, 157420, 225944, 282430, 314840, 480131, 564860, 960262, 1129720, 1920524, 2400655, 3841048, 4801310, 9602620, 19205240]

約数ペア:

[(1, 19205240), (2, 9602620), (4, 4801310), (5, 3841048), (8, 2400655), (10, 1920524), (17, 1129720), (20, 960262), (34, 564860), (40, 480131), (61, 314840), (68, 282430), (85, 225944), (122, 157420), (136, 141215), (170, 112972), (244, 78710), (305, 62968), (340, 56486), (463, 41480), (488, 39355), (610, 31484), (680, 28243), (926, 20740), (1037, 18520), (1220, 15742), (1852, 10370), (2074, 9260), (2315, 8296), (2440, 7871), (3704, 5185), (4148, 4630)]