18973275

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{647}}^1$

素因数の和:700

約数の個数: 48

約数和(自身を含む): 34712064

約数和(自身を除く): 15738789

約数列:

[1, 3, 5, 15, 17, 23, 25, 51, 69, 75, 85, 115, 255, 345, 391, 425, 575, 647, 1173, 1275, 1725, 1941, 1955, 3235, 5865, 9705, 9775, 10999, 14881, 16175, 29325, 32997, 44643, 48525, 54995, 74405, 164985, 223215, 252977, 274975, 372025, 758931, 824925, 1116075, 1264885, 3794655, 6324425, 18973275]

約数ペア:

[(1, 18973275), (3, 6324425), (5, 3794655), (15, 1264885), (17, 1116075), (23, 824925), (25, 758931), (51, 372025), (69, 274975), (75, 252977), (85, 223215), (115, 164985), (255, 74405), (345, 54995), (391, 48525), (425, 44643), (575, 32997), (647, 29325), (1173, 16175), (1275, 14881), (1725, 10999), (1941, 9775), (1955, 9705), (3235, 5865)]