64945215

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{479}}^1$

素因数の和:644

約数の個数: 48

約数和(自身を含む): 118609920

約数和(自身を除く): 53664705

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 131, 207, 345, 393, 479, 655, 1035, 1179, 1437, 1965, 2395, 3013, 4311, 5895, 7185, 9039, 11017, 15065, 21555, 27117, 33051, 45195, 55085, 62749, 99153, 135585, 165255, 188247, 313745, 495765, 564741, 941235, 1443227, 2823705, 4329681, 7216135, 12989043, 21648405, 64945215]

約数ペア:

[(1, 64945215), (3, 21648405), (5, 12989043), (9, 7216135), (15, 4329681), (23, 2823705), (45, 1443227), (69, 941235), (115, 564741), (131, 495765), (207, 313745), (345, 188247), (393, 165255), (479, 135585), (655, 99153), (1035, 62749), (1179, 55085), (1437, 45195), (1965, 33051), (2395, 27117), (3013, 21555), (4311, 15065), (5895, 11017), (7185, 9039)]