205144425

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1021}}^1$

素因数の和:1103

約数の個数: 72

約数和(自身を含む): 395391360

約数和(自身を除く): 190246935

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 47, 57, 75, 95, 141, 171, 225, 235, 285, 423, 475, 705, 855, 893, 1021, 1175, 1425, 2115, 2679, 3063, 3525, 4275, 4465, 5105, 8037, 9189, 10575, 13395, 15315, 19399, 22325, 25525, 40185, 45945, 47987, 58197, 66975, 76575, 96995, 143961, 174591, 200925, 229725, 239935, 290985, 431883, 484975, 719805, 872955, 911753, 1199675, 1454925, 2159415, 2735259, 3599025, 4364775, 4558765, 8205777, 10797075, 13676295, 22793825, 41028885, 68381475, 205144425]

約数ペア:

[(1, 205144425), (3, 68381475), (5, 41028885), (9, 22793825), (15, 13676295), (19, 10797075), (25, 8205777), (45, 4558765), (47, 4364775), (57, 3599025), (75, 2735259), (95, 2159415), (141, 1454925), (171, 1199675), (225, 911753), (235, 872955), (285, 719805), (423, 484975), (475, 431883), (705, 290985), (855, 239935), (893, 229725), (1021, 200925), (1175, 174591), (1425, 143961), (2115, 96995), (2679, 76575), (3063, 66975), (3525, 58197), (4275, 47987), (4465, 45945), (5105, 40185), (8037, 25525), (9189, 22325), (10575, 19399), (13395, 15315)]