28904985

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{191}}^1$

素因数の和:283

約数の個数: 64

約数和(自身を含む): 55296000

約数和(自身を除く): 26391015

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 59, 95, 135, 171, 177, 191, 285, 295, 513, 531, 573, 855, 885, 955, 1121, 1593, 1719, 2565, 2655, 2865, 3363, 3629, 5157, 5605, 7965, 8595, 10089, 10887, 11269, 16815, 18145, 25785, 30267, 32661, 33807, 50445, 54435, 56345, 97983, 101421, 151335, 163305, 169035, 214111, 304263, 489915, 507105, 642333, 1070555, 1521315, 1926999, 3211665, 5780997, 9634995, 28904985]

約数ペア:

[(1, 28904985), (3, 9634995), (5, 5780997), (9, 3211665), (15, 1926999), (19, 1521315), (27, 1070555), (45, 642333), (57, 507105), (59, 489915), (95, 304263), (135, 214111), (171, 169035), (177, 163305), (191, 151335), (285, 101421), (295, 97983), (513, 56345), (531, 54435), (573, 50445), (855, 33807), (885, 32661), (955, 30267), (1121, 25785), (1593, 18145), (1719, 16815), (2565, 11269), (2655, 10887), (2865, 10089), (3363, 8595), (3629, 7965), (5157, 5605)]