64505475

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{191}}^1$

素因数の和:305

約数の個数: 72

約数和(自身を含む): 123801600

約数和(自身を除く): 59296125

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 75, 79, 95, 171, 191, 225, 237, 285, 395, 475, 573, 711, 855, 955, 1185, 1425, 1501, 1719, 1975, 2865, 3555, 3629, 4275, 4503, 4775, 5925, 7505, 8595, 10887, 13509, 14325, 15089, 17775, 18145, 22515, 32661, 37525, 42975, 45267, 54435, 67545, 75445, 90725, 112575, 135801, 163305, 226335, 272175, 286691, 337725, 377225, 679005, 816525, 860073, 1131675, 1433455, 2580219, 3395025, 4300365, 7167275, 12901095, 21501825, 64505475]

約数ペア:

[(1, 64505475), (3, 21501825), (5, 12901095), (9, 7167275), (15, 4300365), (19, 3395025), (25, 2580219), (45, 1433455), (57, 1131675), (75, 860073), (79, 816525), (95, 679005), (171, 377225), (191, 337725), (225, 286691), (237, 272175), (285, 226335), (395, 163305), (475, 135801), (573, 112575), (711, 90725), (855, 75445), (955, 67545), (1185, 54435), (1425, 45267), (1501, 42975), (1719, 37525), (1975, 32661), (2865, 22515), (3555, 18145), (3629, 17775), (4275, 15089), (4503, 14325), (4775, 13509), (5925, 10887), (7505, 8595)]