28104401955

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{419}}^1\times {\mathrm{709}}^1$

素因数の和:1213

約数の個数: 128

約数和(自身を含む): 55651276800

約数和(自身を除く): 27546874845

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 53, 85, 105, 119, 159, 255, 265, 357, 371, 419, 595, 709, 795, 901, 1113, 1257, 1785, 1855, 2095, 2127, 2703, 2933, 3545, 4505, 4963, 5565, 6285, 6307, 7123, 8799, 10635, 12053, 13515, 14665, 14889, 18921, 21369, 22207, 24815, 31535, 35615, 36159, 37577, 43995, 49861, 60265, 66621, 74445, 84371, 94605, 106845, 111035, 112731, 149583, 155449, 180795, 187885, 249305, 253113, 263039, 297071, 333105, 377519, 421855, 466347, 563655, 638809, 747915, 777245, 789117, 891213, 1132557, 1265565, 1315195, 1485355, 1887595, 1916427, 2079497, 2331735, 2642633, 3194045, 3945585, 4456065, 4471663, 5050207, 5662785, 6238491, 7927899, 9582135, 10397485, 13213165, 13414989, 15150621, 15744763, 22358315, 25251035, 31192455, 35351449, 39639495, 47234289, 67074945, 75753105, 78723815, 106054347, 110213341, 176757245, 236171445, 267660971, 330640023, 530271735, 551066705, 802982913, 1338304855, 1653200115, 1873626797, 4014914565, 5620880391, 9368133985, 28104401955]

約数ペア:

[(1, 28104401955), (3, 9368133985), (5, 5620880391), (7, 4014914565), (15, 1873626797), (17, 1653200115), (21, 1338304855), (35, 802982913), (51, 551066705), (53, 530271735), (85, 330640023), (105, 267660971), (119, 236171445), (159, 176757245), (255, 110213341), (265, 106054347), (357, 78723815), (371, 75753105), (419, 67074945), (595, 47234289), (709, 39639495), (795, 35351449), (901, 31192455), (1113, 25251035), (1257, 22358315), (1785, 15744763), (1855, 15150621), (2095, 13414989), (2127, 13213165), (2703, 10397485), (2933, 9582135), (3545, 7927899), (4505, 6238491), (4963, 5662785), (5565, 5050207), (6285, 4471663), (6307, 4456065), (7123, 3945585), (8799, 3194045), (10635, 2642633), (12053, 2331735), (13515, 2079497), (14665, 1916427), (14889, 1887595), (18921, 1485355), (21369, 1315195), (22207, 1265565), (24815, 1132557), (31535, 891213), (35615, 789117), (36159, 777245), (37577, 747915), (43995, 638809), (49861, 563655), (60265, 466347), (66621, 421855), (74445, 377519), (84371, 333105), (94605, 297071), (106845, 263039), (111035, 253113), (112731, 249305), (149583, 187885), (155449, 180795)]