138708880

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{55931}}^1$

素因数の和:55975

約数の個数: 40

約数和(自身を含む): 332907264

約数和(自身を除く): 194198384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 55931, 111862, 223724, 279655, 447448, 559310, 894896, 1118620, 1733861, 2237240, 3467722, 4474480, 6935444, 8669305, 13870888, 17338610, 27741776, 34677220, 69354440, 138708880]

約数ペア:

[(1, 138708880), (2, 69354440), (4, 34677220), (5, 27741776), (8, 17338610), (10, 13870888), (16, 8669305), (20, 6935444), (31, 4474480), (40, 3467722), (62, 2237240), (80, 1733861), (124, 1118620), (155, 894896), (248, 559310), (310, 447448), (496, 279655), (620, 223724), (1240, 111862), (2480, 55931)]