68281840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2503}}^1$

素因数の和:2558

約数の個数: 80

約数和(自身を含む): 178845696

約数和(自身を除く): 110563856

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 220, 248, 310, 341, 440, 496, 620, 682, 880, 1240, 1364, 1705, 2480, 2503, 2728, 3410, 5006, 5456, 6820, 10012, 12515, 13640, 20024, 25030, 27280, 27533, 40048, 50060, 55066, 77593, 100120, 110132, 137665, 155186, 200240, 220264, 275330, 310372, 387965, 440528, 550660, 620744, 775930, 853523, 1101320, 1241488, 1551860, 1707046, 2202640, 3103720, 3414092, 4267615, 6207440, 6828184, 8535230, 13656368, 17070460, 34140920, 68281840]

約数ペア:

[(1, 68281840), (2, 34140920), (4, 17070460), (5, 13656368), (8, 8535230), (10, 6828184), (11, 6207440), (16, 4267615), (20, 3414092), (22, 3103720), (31, 2202640), (40, 1707046), (44, 1551860), (55, 1241488), (62, 1101320), (80, 853523), (88, 775930), (110, 620744), (124, 550660), (155, 440528), (176, 387965), (220, 310372), (248, 275330), (310, 220264), (341, 200240), (440, 155186), (496, 137665), (620, 110132), (682, 100120), (880, 77593), (1240, 55066), (1364, 50060), (1705, 40048), (2480, 27533), (2503, 27280), (2728, 25030), (3410, 20024), (5006, 13640), (5456, 12515), (6820, 10012)]