8900720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:178

約数の個数: 80

約数和(自身を含む): 22165248

約数和(自身を除く): 13264528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 37, 40, 62, 74, 80, 97, 124, 148, 155, 185, 194, 248, 296, 310, 370, 388, 485, 496, 592, 620, 740, 776, 970, 1147, 1240, 1480, 1552, 1940, 2294, 2480, 2960, 3007, 3589, 3880, 4588, 5735, 6014, 7178, 7760, 9176, 11470, 12028, 14356, 15035, 17945, 18352, 22940, 24056, 28712, 30070, 35890, 45880, 48112, 57424, 60140, 71780, 91760, 111259, 120280, 143560, 222518, 240560, 287120, 445036, 556295, 890072, 1112590, 1780144, 2225180, 4450360, 8900720]

約数ペア:

[(1, 8900720), (2, 4450360), (4, 2225180), (5, 1780144), (8, 1112590), (10, 890072), (16, 556295), (20, 445036), (31, 287120), (37, 240560), (40, 222518), (62, 143560), (74, 120280), (80, 111259), (97, 91760), (124, 71780), (148, 60140), (155, 57424), (185, 48112), (194, 45880), (248, 35890), (296, 30070), (310, 28712), (370, 24056), (388, 22940), (485, 18352), (496, 17945), (592, 15035), (620, 14356), (740, 12028), (776, 11470), (970, 9176), (1147, 7760), (1240, 7178), (1480, 6014), (1552, 5735), (1940, 4588), (2294, 3880), (2480, 3589), (2960, 3007)]