20125909425

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^2\times {\mathrm{659}}^1\times {\mathrm{1409}}^1$

素因数の和:2115

約数の個数: 72

約数和(自身を含む): 35426080800

約数和(自身を除く): 15300171375

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 289, 425, 659, 867, 1275, 1409, 1445, 1977, 3295, 4227, 4335, 7045, 7225, 9885, 11203, 16475, 21135, 21675, 23953, 33609, 35225, 49425, 56015, 71859, 105675, 119765, 168045, 190451, 280075, 359295, 407201, 571353, 598825, 840225, 928531, 952255, 1221603, 1796475, 2036005, 2785593, 2856765, 4642655, 4761275, 6108015, 10180025, 13927965, 14283825, 15785027, 23213275, 30540075, 47355081, 69639825, 78925135, 236775405, 268345459, 394625675, 805036377, 1183877025, 1341727295, 4025181885, 6708636475, 20125909425]

約数ペア:

[(1, 20125909425), (3, 6708636475), (5, 4025181885), (15, 1341727295), (17, 1183877025), (25, 805036377), (51, 394625675), (75, 268345459), (85, 236775405), (255, 78925135), (289, 69639825), (425, 47355081), (659, 30540075), (867, 23213275), (1275, 15785027), (1409, 14283825), (1445, 13927965), (1977, 10180025), (3295, 6108015), (4227, 4761275), (4335, 4642655), (7045, 2856765), (7225, 2785593), (9885, 2036005), (11203, 1796475), (16475, 1221603), (21135, 952255), (21675, 928531), (23953, 840225), (33609, 598825), (35225, 571353), (49425, 407201), (56015, 359295), (71859, 280075), (105675, 190451), (119765, 168045)]