2642750

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{31}}^2$

素因数の和:90

約数の個数: 48

約数和(自身を含む): 5576688

約数和(自身を除く): 2933938

約数列:

[1, 2, 5, 10, 11, 22, 25, 31, 50, 55, 62, 110, 125, 155, 250, 275, 310, 341, 550, 682, 775, 961, 1375, 1550, 1705, 1922, 2750, 3410, 3875, 4805, 7750, 8525, 9610, 10571, 17050, 21142, 24025, 42625, 48050, 52855, 85250, 105710, 120125, 240250, 264275, 528550, 1321375, 2642750]

約数ペア:

[(1, 2642750), (2, 1321375), (5, 528550), (10, 264275), (11, 240250), (22, 120125), (25, 105710), (31, 85250), (50, 52855), (55, 48050), (62, 42625), (110, 24025), (125, 21142), (155, 17050), (250, 10571), (275, 9610), (310, 8525), (341, 7750), (550, 4805), (682, 3875), (775, 3410), (961, 2750), (1375, 1922), (1550, 1705)]