81473475

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{647}}^1$

素因数の和:756

約数の個数: 48

約数和(自身を含む): 142705152

約数和(自身を除く): 61231677

約数列:

[1, 3, 5, 15, 23, 25, 69, 73, 75, 115, 219, 345, 365, 575, 647, 1095, 1679, 1725, 1825, 1941, 3235, 5037, 5475, 8395, 9705, 14881, 16175, 25185, 41975, 44643, 47231, 48525, 74405, 125925, 141693, 223215, 236155, 372025, 708465, 1086313, 1116075, 1180775, 3258939, 3542325, 5431565, 16294695, 27157825, 81473475]

約数ペア:

[(1, 81473475), (3, 27157825), (5, 16294695), (15, 5431565), (23, 3542325), (25, 3258939), (69, 1180775), (73, 1116075), (75, 1086313), (115, 708465), (219, 372025), (345, 236155), (365, 223215), (575, 141693), (647, 125925), (1095, 74405), (1679, 48525), (1725, 47231), (1825, 44643), (1941, 41975), (3235, 25185), (5037, 16175), (5475, 14881), (8395, 9705)]